21. Toby Gerhart
Gerhart may not be a name people know all that well today. However, at one point he could have been called the best college football player alive. He had a good collegiate career at Stanford with his last few years being his best. In his junior year, he rushed for 1,136 yards and 15 TDs. However, Gerhart exploded during his senior year.

Gerhart put up 1,871 yards rushing and 28 TDs. He even threw for a TD as well. His 2009 senior campaign was so successful that he achieved multiple awards. Gerhart took home All-American honors, PAC-1o Offensive Player of the Year, and the Doak Walker Award. However, he came in second in the Heisman race. To this day, it is the smallest margin of victory over another player in the history of the Heisman.