Michael's Murder / Perjury trap plans as we saw after the events, were -
Plan A – Tahoe bedroom shooting
Plan B – Michael's murder in Havana
Plan C – Senate hearing / brilliant perjury trap

I believe, the incredibly resourceful and astute Roth, friend and associate of Batista, would have meticulously concocted Plan B after the failed Plan A Tahoe shooting attempt – Michael's murder in Havana, such a terribly unfortunate death, caught up in the midst of the rebel uprising in spite of being escorted in a military car

Nobody would have expected Michael to survive! the Tahoe machine gun fire in such a confined space of a bedroom

Vito was hit with five shots and survived Michael's bedroom was machine gun sprayed and survived
Where do they find these assassins who couldn't shoot fish in a barrel!

Roth's plan would have been to stay on in Havana after Michael's assassination Then Roth
1. had his stroke
2. was nearly killed by Michael's bodyguard Buscetta in his hospital room
3. was taken out of Havana on a private boat
4. was in a hospital in Miami recovering from his stroke
5. surfaces in Israel

Plan C – Senate hearing / brilliant perjury trap

• So who put together the Senate hearing
• How did they know / find out Pentangeli was alive let alone FBI has Pentangeli air-tight, on an army base twenty-four hour guards
• How did they know / find out Pentangeli was being prepared to testify against Michael
• How did it come about the Senate Lawyer Questadt belongs to Roth
• Did Questadt have Roth's brain -- uh -- for big deals