It was Friday, Dec. 23, 2016, and Eastern Michigan head football coach Chris Creighton had just gone through his team’s walkthrough before the Bahamas Bowl in Nassau. Creighton’s team had just put the finishing touches on a 7-5 regular season, the program’s best since 1989, and was getting ready to play its first bowl game since 1987. As he was walking off the field, Creighton began to tear up. He was walking off the field with his offensive coordinator, a young man named Kalen DeBoer, and Creighton knew DeBoer was moving on after the bowl game. “Thankfully, I had sunglasses on,” Creighton rec…