He is the head football coach at Tarleton State University, a position he held in 1996, from 2000 to 2004, and resumed before the 2016 season.
In addition he set 30 school records, coached 13 All-Americans, 80 all-conference players, and led the Texans to their first ever playoff appearances in 2001 and 2003.
While at Sam Houston, Whitten produced the school's first back to back 1,000 yards rusher in 2006 and 2007, finished the 2008 season ranked sixth nationally in total offense, directed the University's all-time leader in both passing and total offense (Rhett Bomar), coached eight All-Americans and 63 all-conference players.
In 2012, Whitten served as the head football coach at Arlington Heights High School in Fort Worth, Texas.
Whitten was named head football coach at Tarleton State for the third time, on December 3, 2015 by athletic director Lonn Reisman.
On February 21, 2020, Whitten coached the Texans to its first win as a FCS member against the New Mexico State Aggies 43-17 who is in the FBS.