They will find the aircraft and pilots very quickly. First, I would expect a lot of the Dynamic people will go or its sister carrier, Air 21.
You do know that Boeing is actually still building the 767 and would bet Amazon would get a good deal. I do believe that someone will get the "contract". My guess is Atlas/ABX/Amerijet or maybe even a place like Air 21.
Sorry ATPLCliff but I think you're wrong.