Chamblin was a preseason All-Ohio Valley Conference selection his senior year at Tennessee
Tech. He played in 43 games with 35 starts, totaling 161 tackles, three interceptions, eight passes
defensed and two blocked punts.
Chamblin signed with the Jacksonville Jaguars' practice squad on September 7,[2] before being released on September 21 and signed to the active roster. He appeared in eleven regular season games for the Jaguars, all on special teams, where he notched three special teams tackles and blocked a punt in a divisional playoff game against the Miami Dolphins.[3]
On December 15, 2011, Chamblin was hired as the head coach of the Saskatchewan Roughriders.[11] On November 10, 2013, Chamblin won his first CFL head coaching career playoff game, a 29–25 win over the BC Lions. On November 17, 2013, Chamblin won the West Final over the Calgary Stampeders, taking the Roughriders to the Grey Cup, which they won on November 25, the first time in his head coaching career.
On August 31, 2015, after leading the Roughriders to an 0–9 start, Chamblin was fired and relieved of his head coaching duties along with general managerBrendan Taman.
Toronto Argonauts (first stint)
On March 7, 2017, Chamblin was named defensive coordinator, defensive backs coach, and assistant head coach for the Toronto Argonauts.[12] The Argonauts won the Grey Cup for that 2017 season, Chamblin's third Grey Cup win as a coach.
Arkansas
In June 2018, Chamblin was hired as a defensive backs quality control coach at the University of Arkansas.[13]
Toronto Argonauts (second stint)
Following the firing of Marc Trestman after the 2018 season, Chamblin was named head coach of the Argonauts on December 10, 2018.[14] After a 4–14 season in 2019, Chamblin was fired.[15]