Discovering Organizational Hierarchy through a Corporate Ranking Algorithm: The Enron Case

Table 9

CorpRank scores of employees: Enron. TW: TransWestern pipeline company, N.A.: North America, V.P.: Vice President, E: Enron, RCS: raw clique score, WCS: weighted clique score, Btw: betweenness, Avg. Dist.: average distance, CC: clustering coefficient, Score: CorpRank score. ∗ indicates that the content of emails infers the position.

	Position	# email	Avg time	# Responses	# Cliques	RCS	WCS	Degree	Btw	Hubs	Avg. dist.	CC	Score
Liz Taylor	Assistant to president & COO	40.99	27.92	2.58	100	89.73	70.16	100	100	100	0	12.15	63.12
Louise Kitchen	President, Enron online	59.2	27.74	21.02	99.17	100	77.86	71.64	28.68	86.31	11.65	20.82	60.35
Sally Beck	Chief operating officer	26.12	37.4	4.66	78.51	77.14	61.9	88.06	56.99	90.43	7.63	13.93	52.17
Kenneth Lay	CEO, chairman	11.73	53.9	0.69	80.17	91.72	74.32	74.63	38.82	88.04	10.04	18.7	50.65
Kimberly Watson	Director deal origination	42.89	34.84	32.54	10.74	91.28	93.23	23.88	2	14.28	63.45	64.05	44.19
Michelle Lokay	Manager	39.83	28.48	12.59	12.4	99.19	100	20.9	1.68	12.17	56.63	75	43.08
Mike Grigsby	VP trading, ENA Gas West	82.89	35.5	37.07	67.77	32.44	19.49	47.76	19.78	57.78	18.88	27.63	42.55
Steven Harris	VP TW group	30.02	27.25	7.68	12.4	99.19	100	23.88	2.06	14.9	55.42	69.28	41.55
Lindy Donoho	Employee	23.47	31.8	10.07	12.4	99.19	100	22.39	1.4	13.08	61.45	73.53	41.51
Jeff Dasovich	Director Sr Gov/Reg. Affairs	100	31.27	100	17.36	13.21	10.53	34.33	15.81	37.41	26.51	26.33	39.83
Kevin Hyatt	Director, Pipeline business	14.46	25.13	3.02	9.92	81.33	81.79	20.9	1.68	12.17	56.63	75	34.96
Drew Fossum	VP & Gen counsel	22.31	25.46	7.55	14.05	75.81	76.23	25.37	4.38	17.17	49	53.22	34.5
Lynn Blair	Director	22.94	27.49	7.43	6.61	69.42	70.64	20.9	1.29	12.58	61.85	74.17	33.91
Tana Jones	Senior legal specialist	85.35	24.7	47.39	19.83	9.93	6.6	26.87	6.62	28.66	35.74	35.26	30.74
Scott Neal	VP trading, ENA Gas East	14.07	42.44	1.95	42.98	43.15	30.95	43.28	12.12	55.65	24.1	29.03	30.08
Shelley Corman	VP Gas logistics & comm.	21.66	26.47	7.61	10.74	56.14	55.74	23.88	5.18	18.14	51	55.56	30.03
Sara Shackleton	VP ENA & senior counsel	80	25.06	56.39	10.74	5.02	3.34	14.93	0.68	12.01	59.04	59.09	29.54
Lawrence G. Whalley	President & COO	14.22	10.87	0.44	25.62	52.92	47.68	28.36	2.4	48.39	26.91	47.14	29.4
Teb Lokay	Regulatory affairs manager	7.25	18.59	1.89	4.13	49.57	51.19	16.42	0.09	7.6	91.97	87.18	29.32
Darrell Schoolcraft	Manager	8.39	49.41	2.39	2.48	43.61	45.39	11.94	0.03	5.78	95.98	95.56	28.39
Roderick Hayslett	Managing Director finance ETS	20	21.69	16.17	6.61	43.61	43.36	22.39	12.44	25.87	32.13	57.35	27.43
Steven Kean	EVP chief of staff	17.28	29.7	3.21	18.18	42.49	39.82	25.37	3.13	40.27	27.31	49.71	26.44
John Arnold	VP trading	20.51	22.14	5.35	33.06	34.49	23.85	26.87	3.26	45.25	29.72	43.16	26.31
Andy Zipper	VP trading	8.94	43.09	1.13	33.06	42.37	30.43	20.9	0.98	39.57	34.54	55.83	26.13
Richard Shapiro	Managing Dir.-Govt. Affairs	62.82	17.27	18.75	14.88	13.71	10.82	23.88	3.58	33.12	33.73	45.1	25.85
Bill Rapp	Attorney	9.08	37.92	4.78	3.31	39.7	41.23	14.93	2	9.01	67.47	78.79	25.11
Hunter Shively	VP trading	10.07	36.27	1.95	26.45	36.72	27.6	26.87	4.18	45.51	30.92	41.05	24.83
Rosalee Fleming	Employee	19.13	33.14	1.89	8.26	35.67	34.48	22.39	0.81	39.98	28.92	61.76	24.65
Phillip Allen	Managing director trading	13.11	6.32	0.44	32.23	30.33	21.85	23.88	1.69	44.88	28.51	50.98	24.14
Stanley Horton	President, Enron gas pipeline	9.33	29.32	1.01	7.44	39.89	39.72	23.88	7.03	33.12	30.52	50.98	23.69
Tracy Geaccone	Sr. Director Consolidations ETS	14.24	13.77	11.71	3.31	23.76	23.83	14.93	0.23	9.76	74.7	83.33	23.61
Stephanie Panus	Employee	43.37	36.02	28.51	23.97	9.37	5.77	22.39	3.96	17.1	47.79	38.24	23.59
Mark McConnell	Manager, TW	16.12	29.14	7.3	2.48	23.76	23.9	14.93	0.18	7.11	77.51	87.88	23.58
Mark Haedicke	Managing director, legal	9.42	21.91	1.83	23.97	30.96	28.47	31.34	10.52	37.91	25.3	35.97	23.29
Jeffrey Skilling	Enron President & COO	3.49	15.85	0.57	9.09	39.27	38.18	17.91	0.6	34.72	32.93	63.74	23.04
Marie Heard	Lawyer	45.47	31.24	23.41	14.88	8.5	5.68	16.42	1.15	18.23	38.96	64.1	22.65
Paul Barbo	Associate	11.3	35.55	2.08	2.48	31.79	33.98	16.42	3.79	8.45	65.86	67.95	22.6
Rick Buy	EVP chief risk officer	7.88	9.93	0.82	9.09	32.07	31.86	16.42	0.66	34.49	30.92	74.36	22.51
Carol Clair	In-house lawyer, assistant general counsel	43.93	21.44	37.57	8.26	2.92	1.75	10.45	0.72	10.61	57.03	63.89	22.32
Kevin Presto	VP trading, ENA east power	15.33	29.46	7.61	42.15	15.69	8.23	29.85	4.09	39.44	32.13	30.3	22.18
Matthew Lenhart	Trader	26.24	28.12	5.54	33.88	16.38	9.27	26.87	6.19	33.65	28.51	38.42	22.07
Kam Keiser	Manager risk management gas	22.34	17.65	8.87	31.4	12.59	6.81	32.84	6.93	39.41	30.92	29.71	21.89
Susan Scott	Analyst, assistant trader	25.23	34.06	4.97	22.31	12.03	8.35	40.3	25.11	30.27	28.92	13.55	20.97
Jeffrey Shankman	President, Enron global mkts	3.73	17.03	1.07	3.31	25.99	27.05	17.91	0.47	36.93	33.73	71.43	20.71
Susan Bailey	Legal specialist	38.55	38.79	10.89	7.44	4.9	3.24	11.94	0.14	9.82	65.46	75.56	20.69
James Steffes	VP, government affairs	34.63	20.84	29.01	13.22	5.89	3.74	16.42	2.75	24.81	38.15	43.59	20.57
Thomas Martin	VP	6.02	17.79	0.88	14.88	26.86	21.26	20.9	1.93	37.07	33.33	49.17	20.35
Fletcher Sturm	VP	5.42	24.52	0.88	20.66	20.78	15.84	22.39	1.05	41.27	32.53	52.21	20.31
Barry Tycholiz	VP	27.64	12.88	11.01	20.66	6.76	3.69	20.9	2.88	32.9	29.72	42.5	19.17
Monique Sanchez	Trader	15.42	34.06	2.27	26.45	10.55	5.67	32.84	6.04	38.04	30.52	26.81	19.09
Phillip Love	Manager risk mgt gas	13.61	21.15	7.87	23.14	7.57	3.74	31.34	9.92	33.63	36.95	26.48	18.82
Jay Reitmeyer	Trader associate	13.4	47.25	1.2	24.79	13.09	7.32	19.4	3.46	31.33	33.73	47.62	18.53
Gerald Nemec	Attorney	23.35	31.44	13.15	20.66	5.58	2.97	26.87	12.67	23.05	31.33	26.32	18.13
Elizabeth Sager	VP & asst. Gral. Counsel	17.78	12.25	3.4	18.18	8.75	5.82	28.36	7.65	31.14	30.92	33.81	17.9
Debra Perlingiere	Legal specialist	19.2	29.99	9.75	17.36	6.48	3.78	26.87	6.6	19.63	43.37	28.95	17.48
Jason Williams	Specialist Sr. logistics	18.53	33.57	4.28	22.31	7.2	3.98	22.39	4.34	28.11	31.73	38.97	17.39
Danny McCarty	Managing Director	6.72	20.42	1.26	2.48	18.8	18.88	17.91	3.96	22.62	36.14	58.24	17.32
Mike Maggi	Director	6.72	18.48	0.19	6.61	9.99	7.16	11.94	0.18	25.96	39.76	82.22	16.85
Mark Taylor	VP & Gen counsel	15.81	21.18	7.43	4.96	5.65	4.21	13.43	0.91	18.69	42.57	67.27	16.29
Kim Ward	Trader	18.8	19.41	9.94	17.36	3.38	1.66	25.37	9.14	28.89	26.91	24.56	16.16
Eric Linder	Trader	0.39	NA	0	0	0.06	0.02	0	0	0	100	100	15.9
Lysa Akin	Sr Admin asst Gvt Affairs	8.65	30.53	1.89	23.14	6.33	2.9	26.87	11.63	11.91	49.8	25.79	15.82
Lisa Gang	Director	1.2	NA	0	0	0.19	0.09	2.99	0	0.88	92.37	100	15.81
Matt Smith	Trading associate	8.84	39.63	0.82	4.96	2.98	1.73	8.96	0.1	16.94	56.22	82.14	15.76
Phillip Platter	Sr. specialist	0.67	3.82	0.06	0.83	0.43	0.24	2.99	0	1.03	90.76	100	15.72
Errol McLaughlin	Specialist sr. - risk mgt gas	20.77	30.37	2.01	7.44	3.47	1.98	16.42	1.04	25.94	39.76	51.28	15.67
Mark Whitt	VP	16.27	25.15	11.2	6.61	2.67	1.5	16.42	2.15	23.01	39.76	46.15	15.36
Mary Hain	In house lawyer	19.13	18.17	7.49	15.7	3.41	1.59	23.88	8.9	18.69	38.15	22.88	15.31
John Lavorato	CEO, Enron America	6.05	NA	0	19.01	9.86	5.18	20.9	1.4	29.96	40.16	28.33	15.3
Jason Wolfe	Trader analyst	8.89	15.91	0.25	13.22	3.91	2.07	11.94	0.28	26.71	35.74	68.89	15.29
Chris Germany	Trader	22.87	45.37	3.65	11.57	3.19	1.44	20.9	5.36	13.88	57.43	20.83	15.22
Susan Pereira	Trader	0	NA	0	0	0.06	0.03	0	0	1.87	89.56	100	15.19
John Griffith	Managing director UK	9.4	27.38	1.13	4.96	6.14	4.08	13.43	0.45	23.45	42.57	63.64	15.1
Cara Semperger	Senior analyst cash	7.49	33.83	2.83	7.44	2.98	1.45	11.94	0.57	3.17	77.51	60	15.09
Tori Kuykendall	Trader	10.72	8.39	0.94	7.44	3.44	1.97	11.94	0.39	14.51	63.05	57.78	15.07
Jane Tholt	Director	1.18	38.34	0.31	0.83	0.12	0.06	1.49	0	4.84	76.71	100	14.9
Dana Davis	VP term	5.35	50.08	0.19	18.18	6.95	3.22	13.43	0.82	28.22	34.94	47.27	14.61
Lawrence May	Director	6.75	42.6	0.82	5.79	6.58	4.57	17.91	2.38	30.14	32.53	51.65	14.6
Mark Guzman	Trader	1.47	NA	0	0.83	0.68	0.32	5.97	0.04	1.45	87.55	80	14.5
Keith Holst	Director	11.4	51.06	0.31	12.4	6.51	3.62	13.43	1.49	26.64	34.94	45.45	14.45
Steven South	Trader	0.1	NA	0	0	0	0	0	0	4.08	77.11	100	14.39
Don Baughman	Trader	6.12	46.02	0.88	19.83	5.27	1.96	17.91	3.36	23.86	39.76	35.16	14.34
Kate Symes	Trader	6.48	24.44	1.89	9.09	3.35	1.58	17.91	1.68	4.8	74.7	39.56	14.22
Frank ermis	Director	7.59	9.73	0.38	10.74	3.85	2.16	14.93	0.53	25.58	36.14	56.06	14.19
Stacy Dickson	Employee	11.73	18.23	1.7	3.31	0.56	0.27	5.97	0.12	4.11	79.92	60	14.18
Jonathan Mckay	Director	4.43	11.4	0.44	15.7	7.75	4.51	14.93	1.22	23.11	39.36	42.42	14.09
Eric Bass	Trader	14.67	17.23	7.99	11.57	2.61	1.31	17.91	4.01	24.97	31.33	31.87	14.03
Randall Gay	Associate	9.3	18.86	0.44	9.09	4.06	2.29	13.43	3.35	22.74	35.34	56.36	14.01
Richard Sanders	VP, Enron wholesale svcs.	5.61	28.72	1.26	8.26	3.1	1.83	10.45	0.34	12.82	61.45	55.56	13.98
Sandra Brawner	Director	3.3	10.93	1.13	5.79	5.4	3.73	10.45	0.27	24.38	39.76	63.89	13.89
Chris Dorland	Manager	4.31	11.92	0.76	22.31	5.71	2.77	20.9	2.27	26.5	32.53	27.5	13.78
Doug Gilbert-smith	Director	5.45	26.98	1.26	10.74	2.92	1.31	14.93	0.87	28.19	38.55	46.97	13.71
Theresa Staab	Employee	3.95	42.65	2.01	0.83	0.31	0.15	4.48	0.06	5.14	69.48	80	13.7
Dan Hyvl	Employee	9.37	26.89	5.41	4.96	1.36	0.77	10.45	1.13	9.32	60.64	52.78	13.64
Bill Williams	Trader analyst	8.17	40.95	1.38	7.44	2.67	1.32	17.91	5.23	4.71	68.27	32.97	13.36
Michelle Cash	Gen counsel assistant	2.77	34.06	0.82	5.79	3.41	2.13	10.45	0.34	14.94	54.22	58.33	13.27
Paul Lucci	Director	5.57	20.98	3.02	3.31	1.8	1.1	10.45	0.43	13.72	49.8	63.89	13.19
Dutch Quigley	Trader	10.05	21.56	2.52	7.44	2.23	1.2	14.93	1.23	23.73	37.75	42.42	13.08
Jeff King	Manager	1.71	NA	0	8.26	1.43	0.4	4.48	0.02	13.78	46.18	80	13.06
David Delainey	CEO, Enron N.A. & E.energy	1.52	NA	0	1.65	1.92	1.13	7.46	0.11	21.18	38.55	80.95	13.03
Vince Kaminski	Risk management head	2.94	13.37	0.57	1.65	4.19	3.87	7.46	0.68	17.34	46.59	66.67	13.01
Darron Giron	Trader associate	4.39	23.48	2.33	0.83	0.06	0.03	1.49	0.01	5.48	76.31	66.67	12.95
Harry Arora	VP	1.95	5.44	0.25	5.79	2.05	1.06	8.96	0.2	21.15	48.19	60.71	12.92
Martin Cuilla	Manager	4.63	26.02	0.5	14.05	2.42	0.97	16.42	3.61	22.19	41.37	34.62	12.85
Kay Mann	Employee	8.46	22.67	2.89	9.92	2.45	1.25	14.93	5.85	9.47	51	36.36	12.79
Stacey White	Director risk management	4	17.39	0.82	9.92	2.3	1.04	10.45	0.67	22.29	40.16	52.78	12.75
James Derrick	EVP general counsel	5.13	29.66	0.44	3.31	4.84	3.94	11.94	1.48	23.73	33.73	53.33	12.67
Robert Benson	Director	1.86	NA	0	4.96	1.67	0.6	5.97	0.06	18.07	42.97	73.33	12.63
Brad Mckay	Contractor	2.34	NA	0	7.44	2.67	1.05	10.45	0.69	17.6	46.18	55.56	12.52
Diana Scholtes	Trader	6.02	39.39	1.32	7.44	2.67	1.38	13.43	4.92	9.77	43.78	50.91	12.46
Charles Weldon	Trader associate	1.08	0.02	0.19	3.31	0.43	0.18	2.99	0.01	12.14	46.99	83.33	12.29
Andrew Lewis	Director, trader	1.23	NA	0	1.65	0.43	0.16	4.48	0.04	15.64	44.58	80	12.27
John Zufferli	VP	3.93	14.93	0.25	9.09	1.67	0.68	8.96	0.35	19.68	40.96	53.57	12.15
Vladi Pimenov	Trading associate	1.49	31.33	0.19	4.13	2.42	1.25	5.97	0.12	15.92	44.58	66.67	12.1
Jim Schwieger	VP	3.81	36.44	0.63	10.74	5.33	3.13	11.94	0.72	18.47	42.17	35.56	12.04
Sean Crandall	Director, trader	4.6	32.22	0.38	9.09	2.85	1.32	10.45	2.25	8.69	44.58	52.78	11.91
Holden Salisbury	Cash analyst	2.63	17.94	0.25	3.31	1.05	0.52	8.96	3.68	6.79	49.8	64.29	11.82
Scott Hendrickson	Trader	4.02	27.61	0.38	1.65	0.31	0.09	2.99	0.12	9.12	56.63	66.67	11.75
Larry Campbell	Senior specialist	0.22	NA	0	0	0.06	0.01	1.49	0.03	2.83	74.7	66.67	11.73
Geir Solberg	Trader analyst	2.12	28.57	0.13	3.31	0.93	0.42	7.46	1.93	6.45	50.6	66.67	11.65
Mike Carson	Employee	2.14	10.62	0.06	6.61	1.67	0.78	5.97	0.15	19.14	38.55	60	11.56
Judy Townsend	Trader	7.23	19.73	0.31	0.83	0.56	0.34	2.99	0.24	9.77	49	66.67	11.49
John Hodge	Managing director	2.22	37.51	0.38	1.65	0.5	0.2	4.48	0.36	6.81	61.85	60	11.48
Mike Swerzbin	VP trading	3.2	22.23	0.06	8.26	2.17	0.94	13.43	4.22	22.09	34.14	38.18	11.39
Robin Rodrigue	Analyst	0.65	35.86	0.13	0.83	0.25	0.12	4.48	0.18	10.52	51	70	11.37
Matt Motley	Director	1.61	NA	0	4.13	1.24	0.49	5.97	0.7	7.32	60.24	53.33	11.34
Juan Hernandez	Senior specialist logistics	2.29	40.86	0.5	3.31	0.56	0.15	5.97	0.17	12.35	48.59	60	11.3
Benjamin Rogers	Associate	1.42	5.31	0.5	2.48	0.56	0.22	4.48	0.12	11.43	52.61	60	11.11
Robert Badeer	Director	9.18	8.86	0.19	4.13	0.53	0.22	7.46	1.17	8.56	54.62	42.86	11.11
Eric Saibi	Trader	3.45	55.72	0.13	3.31	0.74	0.31	5.97	0.23	14.85	40.96	60	11.09
Peter Keavey	Employee	0.75	0	0.06	0.83	0.22	0.12	2.99	0.02	7.4	72.29	50	11.04
Joe Stepenovitch	Specialist Sr.trader support	2.14	100	0.13	1.65	0.31	0.07	4.48	0.11	8.08	53.82	60	11
Jerry Farmer	Logistics manager	1.11	13.93	0.31	1.65	0.31	0.15	4.48	0.21	9.17	53.01	60	10.77
John Forney	Manager, real time trading	4.53	57.91	1.13	8.26	1.09	0.28	8.96	0.45	12.38	47.39	35.71	10.66
Craig Dean	Trader	1.16	NA	0	0.83	0.06	0.01	1.49	0.27	5.07	55.02	66.67	10.57
Ryan Slinger	Trader	2.39	20.66	0.19	3.31	0.74	0.3	7.46	5.63	5.8	51.81	47.62	10.53
Geoffrey Storey	Director, trader	3.57	4.4	0.63	5.79	1.18	0.59	8.96	0.75	20.83	39.76	35.71	10.42
Kevin Ruscitti	Trader	1.23	17.34	0.25	1.65	0.19	0.07	2.99	0.27	2.81	78.31	33.33	10.02
Andrea Ring	Trader	2.29	NA	0	1.65	0.28	0.09	5.97	1.74	11.97	44.98	46.67	9.86
Paul Thomas	Trader associate	1.08	84.69	0.06	4.13	0.87	0.25	8.96	1.49	11.96	44.58	39.29	9.85
Cooper Richey	Manager	1.64	NA	0	3.31	0.5	0.14	7.46	0.91	14.67	40.96	42.86	9.71
Richard Ring	Employee	0.43	17.43	0.19	0.83	0.09	0.05	1.49	0.11	2.93	76.31	33.33	9.5
Joe Parks	Trader	2.34	44.92	0.19	1.65	0.37	0.16	4.48	0.57	8.43	50.6	40	9.21
Patrice Mims	Employee	2.58	7.41	0.76	0.83	0.56	0.33	4.48	0.41	13.31	41.77	40	8.93
Chris Stokley	Employee	1.08	69.58	0.06	3.31	0.34	0.11	5.97	0.95	13.13	40.96	33.33	8.65
Tom Donohoe	Employee	0.19	23.12	0.13	0.83	0.03	0.01	0	0.08	4.73	61.85	0	5.77
Monika Causholli	Analyst risk management	0.17	NA	0	0.83	0.03	0	0	0.16	4.51	59.44	0	5.55
Joe Quenet	Trader	0.34	NA	0	1.65	0.09	0.01	0	0.02	5.56	55.42	0	5.43
Albert Meyers	Specialist, trader	0.34	14.55	0.13	0.83	0	0	0	0.27	4.75	55.42	0	5.25