So...Flying Tigers all over again?
Going to be a lot of Atlas alumni at FedEx that'll become junior to themselves, that's for sure.
I really don't see what Atlas has to offer that FedEx couldn't do themselves. Throw those old MD-11s on ACMI contracts or maybe buy some 777-300ERFs. Hire some of the sales people from Atlas and other ACMIs to import experience. There's really no secret sauce here (besdies competing on cost, which FedEx probably can't).