If you thought Kyrie Irving was sullen and churlish - now comes Terry Rozier with a vengeance. Red Auerbach acted up on many occasions but didn't tolerate his players doing so. Ditto with Danny Ainge. He could be playfully imp-like in his younger days, but he wants little of that from his guys now. It started early with Terry Rozier.
Rick Pitino recommended that Ainge take T-Ro in the draft, and maybe that should have been a red flag. No one doubts Rozier's athletic gifts - just his attitude.