The Detroit Lions have no interest in trading away Matthew Stafford.

"I haven't thought about that and I have no interest in trading Matthew," Bob Quinn said when asked the question.

Stafford is still just 28 and finished the season well under Jim Bob Cooter.

Bob Quinn believes drafting a quarterback is a wise calculated risk.

Quinn was hired this offseason as general manager of the Lions.

"I think it's really good football business to acquire a young quarterback every year or every other year," Quinn said, via the Detroit Free Press. "There's such a value in the position and nowadays in college football there's a lot of spread offenses, which means it's a lot different than pro football. So it takes these young quarterbacks time to develop. So if you can add a young quarterback every year or every other year to your roster, it's good football business in my mind. So you have time to develop them, either on the practice squad or as a backup, before eventually them having to play in a game."

Stevan Ridley has agreed to sign with the Detroit Lions on a one-year deal.

Ridley had just 90 yards on 36 carries in 2015 with the New York Jets coming off a torn ACL.

Bob Quinn was with the New England Patriots during Ridley's tenure with the New England Patriots.