No way, or if so, Glass is stupid.
I find it incredibly hard to believe that Stevens has indicated that he's going to leave the Celtics no matter what after the end of next year. If he did give his word directly to Fred Glass, then this all makes sense, but it's hard to believe.
So if this is Glass simply thinking he might be able to get Stevens next year, and turning down an opportunity to get someone like Marshall, then I think he might be making a mistake.
Hell, if I knew for a fact that no matter what, Stevens was coming to IU after the end of next season, I'd wait too.