TB, I'm reluctant to disagree with you, but I will regarding Michael's motivation. I don't think Michael's manipulating Frankie took place. Michael told Frankie quite clearly in Tahoe that his family was still called Corleone and Frankie was too much of an old soldier not to understand what Michael meant by that. In NY, he patiently explained to Frankie why he wanted him to settle things with the Rosatos. Call that manipulation if you want. But Michael is the Big Don and Frankie is the little Don, Frankie realized that and, again, he was too much of an old soldier not to follow orders until he thought that Michael tried to kill him.

Michael's yelling at Frankie was simply Micahel's emoting over the attack.