Not many guys I'd rather having coaching the C's than Brad but I do think a lot of the loss should lie fully on his shoulders. All the players, even the best ones will struggle, it's the coach's job to mitigate that with in game adjustments. Clearly, I am no expert here, but a few of the in game adjustments I would have made are:
1. After watching Rozier and Smart get roasted about 600 times on pick and roll and after the Cavs did it to us about 1-2 times straight in Games 6 and 7, I would have gone to a lineup of Baynes, Horford, Morris, Brown and Tatum or Horford, Morris, Ojeleye, Brown and Tatum - could "not" have been worse than what was going on with Smart and Rozier on the pick and switch BS the Cavs ran relentlessly. I would have taken my chances with Brown or Tatum on George Hill and would have had confidence that tatum and Horford, between them, could get the ball over half court and get the offense rolling.
2. I would have face guarded/denied James the ball 94 feet for 48 minutes. Ideally force someone else to initiate the offense and if he did get the ball I'd back off a bit but make him change directions all the way up the court. Would have worked him relentlessly. We "did not" make it as hard as we could on him.
3. I would have made every possession a sprint up the court - even after made baskets. If needed I would have played Ojeleye and Moose a bit more if needed to rest guys. We had the younger legs and way too often particulalry in Game seven we walked the ball up, making it easy on James like. I would have tried to run him off the floor - you can rest all summer....