Indeed Pentangeli was hung out to dry by Michael
Even more manipulative when he visited Pentangeli and convinced him to stick his head into the lion's mouth to meet with the Rosatos. What a bastard!
Did they have to die? However I believe Michael was not expecting Frankie to come to any harm other than the humiliating back down, perhaps handing over the three territories and in the process looking weak etc.
In my opinion if Frankie is killed and Rosato brothers, Roth's ally take over the Corleone operations then Michael loses his muscle and becomes just another casino operator, easy pickings for anyone which would be bigger worry for Michael
Pentangeli should have had more faith in his Don irrespective.....
and the honour of OmertÃ
Michael was at his most manipulative after the Tahoe shooting - he scared the rs**t out of Frankie at Frankie's home--then said he wanted Frankie to "help me take my revenge." "Michael...anything," Frankie practically collapsed with relief
It's not personal, Turnbull It's strictly business!