Former Lions quarterbacks coach Brian Callahan has an interview scheduled with the Titans for their offensive coordinator job, a source tells Jordan Raanan of ESPN.com (on Twitter). The Jets are also interviewing him for a job on their staff and Raanan wouldn’t rule him out for the Giants’ staff as well. 
This week, the Titans informed previous OC Terry Robiskie that he will not be a part of Mike Vrabel‘s new staff. Previously, it was reported that Ohio State co-offensive coordinator Ryan Day would become the Titans’ next OC, but he opted to remain with the Buckeyes. The Titans have now whiffed on their No. 1 choice for both coordinator spots as James Bettcher has agreed to become the Giants’ DC.
Callahan is well-regarded around the league, so it was a surprise this year when the Lions elected to let him go. In his two seasons as Detroit’s QBs coach, Matthew Stafford averaged 4,386.5 yards per season and a 65.5% completion rate with 26.5 touchdowns and ten interceptions.
Is he any relation to the vastly over rated offensive line coach Bill Callahan?
He looks exactly like him, my money is on father/son
please get him for OC.