Report: Mike Zimmer, Jim Caldwell expected to interview for Titans this week

The Titans have requested permission to interview Bengals offensive coordinator Jay Gruden and they also appear to have interest in speaking with Gruden’s counterpart on the defensive side of the ball. Jim Wyatt of the Tennessean reports that the Titans have Bengals defensive coordinator Mike Zimmer on their list of candidates to replace Mike Munchak.…