The MLB is almost a year long thing.
So?
It doesn't start in the winter, it does however end in the fall. Wait are actually arguing FOR the 'play baseball in the fall' camp?
At the high school level, baseball in Nebraska starts just after the NCAA season starts, and i'm sure sooner down south.
Again so what? High school baseball in Ohio starts in April, right around the time MLB starts. Why in the hell should the NCAA base it's decisions around when your HS rules?
There is ZERO reason to try and change what the Big Ten does, because the NCAA isn't going to cater to the Big Ten for baseball.
Actually having a governing body who feels it is necessary to follow a setup that specifically discriminates against teams in certain regions is a valid reason for the B1G to look into what is best for it's member institutions rather than what suits southern HS schedules.