AWAC is probably better positioned than many other regionals. I would read exactly nothing into the departure of DM. Just a dude looking for something else. Used AWAC and his current position as a stepping stone, something most people do when they come to a regional.

As far as the CL-65s getting old. Well, the newest one is not even 5 years old and the oldest is less than 10. Not that old in the airline world. They'll be around until the owners can get out of the leases.