offensive coordinator Tennessee Titans’ Brian Callahan ranks outside top 5 of head coaches hired 9 months ago Brian Callahan was hired a few weeks after the Tennessee Titans parted company with Mike Vrabel, and he is the… Ohio State will name Bill O’Brien as its offensive coordinator 10 months ago Ohio Ohio State's next offensive coordinator will be longtime NFL coach Bill O'Brien, an Ohio State source confirmed. O'Brien has… Under Scott Frost, Nebraska football appoints Mark Whipple as offensive coordinator 3 years ago Mark Whipple has resurfaced at Nebraska in the same job under head football coach Scott Frost, just one day after… Tommy Rees declares he will staying as offensive coordinator at Notre Dame 3 years ago Tommy Rees, the offensive coordinator at Notre Dame, confirmed to the players Wednesday night that he will remain at the…