Carroll is the all-time leader in rushing yards at Hardin-Simmons University as he rushed for 3,988 yards and helped establish the Cowboys from a first year program to conference champion. He is fifth all time in rushing TDs with 26 and is second all-time in rushing yards per game with a 92.7 yards per game average. In 1993, Carroll helped lead the Cowboys to a No. 1 ranking in the NAIA national poll and the TIAA Conference Championship. The Cowboys advanced to the NAIA semifinals before losing to Westminster College. The Andrews native, was an honorable mention All-America the last two seasons and was also named all-TIAA first-team.
After graduating from Hardin-Simmons, he coached at Roosevelt High School from 1995-2005 and was the running backs coach when the Rough Riders won the Class 5A Division II State Championship. He was the offensive coordinator at Reagan High School from 2006-2007 and as the head coach at Waco University from 2008-2012. He returned to Roosevelt High School as head coach in March, 2013 when he became the first African-American head football coach in the 63-year history of the North East Independent School District.