We have some crazy hard years coming up.
2016: http://www.fbschedules.com/ncaa-16/2016-ohio-state-buckeyes-football-sch...
@Oklahoma
@Penn State
@Wisconsin
@Michigan State
Nebraska
2019: http://www.fbschedules.com/ncaa-19/2019-ohio-state-buckeyes-football-sch...
Cincinatti (Could be B12 at that point)
TCU
@Nebraska
Michigan State
Wisconsin
Penn State
Michigan (If their new coach pans out they may be good again by then)
Edit: Also, TCU, Nebraska, and Michigan State are all on back to back weeks.
Some other marquee OoC matchups on other years too.