Shouldve have waited for the T-wolves IMO. Ride out the senior class this season, you knew Flip was on his way out (no better way to say that, apologies), then step into a team with a nice young roster with a fanbase that is much more lenient.
Zero idea why he bailed for the bulls unless he burned some bridges at the T-wolves.
Hell, I think that the only reason that Flip was still the coach was because Fred hadn't said yes to them yet.