Ohio State hired Ryan Day to be its 25th head football coach despite a number of remarkable unknowns.
The 39-year-old filled in admirably during Urban Meyer's three-game suspension to start the 2018 season, but there's a big difference between running a program and providing a bridge gap for the person who's really in charge.
There are questions Day needs to answer as he moves forward. Can he run a successful offseason, from winter conditioning to fall camp? Can he manage a room full of coaches and get them to share his vision? Can he motivate a group of teenagers and 20-somethings the way his predecessor did with ease?