A 2002 graduate of Williams College, Creighton returned to Williamstown in the summer of 2006 to coach the Eph wide receivers and special teams after stints at both Northeastern University (2002) and Tufts University (2003-2006).

Hired by former Eph QB and Northeastern University Offensive Coordinator Kevin Morris ’86, Creighton served as the offensive assistant where he was involved in all phases of weekly preparation and with the Huskies' quarterbacks, during the 2002 Atlantic-10 championship season.

The following season Marshall joined the staff at Tufts University as wide receivers coach and began work in a Master's of Arts program in Educational Studies. In 2004 Marshall was named linebackers coach of the Jumbos. A member of three NESCAC championship teams and two undefeated teams, Creighton shared time as the starting QB in 2000 and started at CB in 2001. He was awarded the Dr. Edward Coughlin Award for overcoming adversity after his senior campaign.

Creighton served as captain of the football, basketball and baseball teams at Bethesda Chevy-Chase [MD] HS and was the recipient of the US Military Reserve National Scholar-Athlete Award. Creighton married former Eph basketball standout Liz Tilley in June and the two reside in Williamstown.