Trading Isaiah Thomas seems out of character. Ainge acquires assets, and he'll move them if he gets greater return on an asset than he invested, until he acquires an asset that is undervalued, then he holds onto it until he wins, or it acquires enough value to move.
He hasn't won anything yet, and IT is about the same guy value-wise as when we acquired him. Until something changes, we aren't moving him. That's where I'd place my money.