An 18 game conference schedule in a 14 team league completely sucks. The schedule becomes a huge factor in the B1G regular season race, which can spoil it, depending upon circumstances. You have 13 opponents, yet you only play five (!!) of them home-and-home. I know we're moving to a 20 game schedule next year, but that only improves things marginally, IMO. It still leaves you playing six of your 13 conference foes only one time, and who those six teams are and where you play them could be a huge advantage or disadvantage.
It really has diminished the value of the regular season championship. Of course, everybody still wants to win it, and it's great when you do. But if a team wins the league by, say, one game over a team who had a tougher schedule and maybe even won the single head-to-head game that was played, you could certainly make an argument against the legitimacy of it.
The schools have no control over it, and you play the games the conference tells you to play, but it's certainly an unfortunate byproduct of conference expansion. The ship has sailed though, because I don't see the B1G ever moving to a 26 game conference schedule!