They will have to fix the simulator first. As I understand it they can't currently simulate the handling of the aircraft under MCAS failure modes. If they correct the simulator and require pilots to train for the handling of MCAS failures then I have to problem with the reintroduction of the max on the same type certificate. From what we are hearing in the press it sounds like Boeing is still pressing for nothing more that a dumb iPad lesson. If the FAA falls for that they will loose all credibility in my eyes.