Cottom committed to the Purdue on February 2, 2011.[2] Cottom played all four years with the Boilermakers, playing in 38 games over that span. Cottom scored 6 touchdowns, 436 rushing yards with an average of 5.7 yards per carry.[3]
On May 2, 2015, Cottom was signed by the Seahawks. On August 31, 2015, he was waived. On September 1, 2015, Cottom was placed on injured reserve. On September 3, 2015, he was waived by the Seahawks. On November 16, 2015, Cottom was re-signed to the practice squad.[5]
On August 20, 2016, Cottom was waived by the Seahawks with an injury designation.[6]
On May 5, 2017, Cottom re-signed with the Seahawks.[7] On May 15, 2017, Cottom was waived by the Seahawks.[8]
Cottom was cast to compete on the 44th season of the American reality TV series Survivor.[10] He started the game on the Ratu tribe and was ultimately the 7th person voted out and the ninth person eliminated, placing 10th overall.