After going back and looking at Northwestern again, I think you might be right in that they will be much better. So I have no problem putting them in the "better" category instead of "slightly better". Also, looking at their schedule, they have an absolutely cupcake OOC lineup with Virginia Tech being their toughest game (who were 11-22 last year).
Michigan 2015 will be Purdue 2014. A bunch of their players were freshmen last year and took their lumps. They will be improved this year, but I think they are still a year away from being truly elite. Everyone has this incredible image of Michigan last year, but frankly, I don't really see it. They were 11-7
before LeVert went down with losses to NJIT, EMU, SMU (at home), and getting absolutely blasted at OSU. Their one good win before losing Levert was Oregon on a neutral court. After he went down, Michigan beat exactly one tournament team (OSU at home). Those are the only tournament teams they beat the entire year. So yeah, they'll be slightly better, but I don't think I'm ready to put them in the top 5 of the Big Ten.
Again, with MSU, they were top 3 in the conference already. I think they were better than most people believed, so I don't really think they will be "better" than last year because they were one of the best to begin with.
I'm just not as optimistic for either Purdue or IU. IU because of defense. Purdue because, well, I've just been a Purdue fan for too long...
. I hope I'm wrong and Purdue puts it together, but I'm thinking we are still a 14-4 team.