Cooter was promoted from quarterbacks coach to offensive coordinator during the 2015 season, replacing Joe Lombardi.
The 33-year-old gained a vote of confidence from quarterback Matthew Stafford on Monday.
“Jim Bob and I have a great relationship and ever since he’s had the opportunity to take the reins, this offense is moving in the right direction, in my opinion,” Stafford said of Cooter to Justin Rogers of The Detroit News. “I feel like I’m playing some of the best football of my career. So I would love to have the opportunity to keep working with him. He’s been good for us and good for me.”
Jim Caldwell was fired on Monday after four seasons with the Lions, posting a cumulative 36-28 record.