Rex Ryan will reportedly be the next head coach of the Buffalo Bills - and while team owners Kim and Terry Pegula work on banging out a contract with him, they're also working on signing Ryan's offensive coordinator, as well. Per Vic Carucci of The Buffalo News, former San Francisco 49ers offensive coordinator Greg Roman is Ryan's choice to run the offense in Buffalo.

#Bills also working on hiring Greg Roman as offensive coordinator, I am told, but deal not done. — Vic Carucci (@viccarucci) January 11, 2015

Earlier this week on a WGR 550 appearance, ESPN's John Clayton had told Mike Schopp that Ryan was "aligned" with former Chicago head coach Marc Trestman for the offensive coordinator role. That, however, does not appear to be the case.

Roman was one of 12 coaches, Ryan included, that the Bills interviewed for their head coaching position. He had spent the last six years of his coaching career working for Jim Harbaugh - the first two years at Stanford coaching tight ends and offensive tackles, and then the last four as his offensive coordinator in San Fran - but will not follow Harbaugh to Michigan.

Roman's offenses ranked among the league leaders in rushing, ranking No. 8, No. 4, No. 3, and No. 4, respectively, in his four-year run as the 49ers' offensive play-caller. Combined with Ryan's preferred philosophy in New York - run the ball and play great defense - it's fair to expect Buffalo's offense to return to its usual run-heavy ways in 2015 after a down year this past season.

The real trick, of course, will be finding Roman a quarterback to work with. Right now, he has EJ Manuel, who at least athletically has similarities to the quarterback Roman coached for four years in San Francisco, Colin Kaepernick.