There will always be those few people who slip through the cracks, but I think that our training department does a pretty good job of weeding people out. They don't rubber stamp training and there doesn't seem to be any pressure from management to just get people through. If someone isn't ready to be a captain, they'll most likely have a very difficult time slipping past both the instructors at TK and the LCP's out on the line. If they're not ready, they don't graduate. People who wash out of upgrade can go back to the right seat, and if a new hire can't get through in a reasonable amount of time they'll be be terminated. I'd think that either situation would be extremely rare.