When I was a new hire, my sim partner was a former F14 carrier pilot.
While I was at the 727 Engineer panel learning to do my thing, he was the "Captain", then after two hours, we would swap seats, so he could learn the panel, while I played Captain.
The funniest thing I've ever seen was watching him try to taxi, while also copying a takeoff clearance, talking to ground, tower, setting dept. freq, setting the flaps, run the checklist himself, etc.
Then he turns to me and says, "Where the hell is CAE? We don't use VOR's on the Boat!"
When we got to the line, we had the luxury of learning the ropes on the line from the back seat. Today, there is no back seat, so you have to be ready to jump into the frying pan on day one on the line.
The Commuter guys already know how to do run at that pace. The Millitary only guys will have to pick up their pace, but they are all capable of learning how, they have proven they can and will adapt quickly, as the slower individuals have already been weeded out in flight school.