Colts just forced Titans' Brian Callahan into a humiliating decision

Indianapolis Colts v Tennessee Titans | Johnnie Izquierdo/GettyImagesWhat seems to be clear at this point is that Tennessee Titans head coach Brian Callahan shouldn't be a head coach in the NFL. Two seasons in with Nashville's team, and his record is 3-17. Plus, he proved to have atrocious clock management in Week 3 versus the Indianapolis Colts.

But while Indy defeated the Titans 41-20 in Week 3, the Colts apparently forced Tennessee to make a fundamental change. This week, Callahan turned his play-calling duties over to quarterbacks coach Bo Hardegree. Normally, a head coach takes away duties, not gives away their own.

The odd part is that Callahan's pure play-calling abilities aren't the…