It's not all about passing training. Stick and rudder, flying ILSs, V1 cuts, etc. checks the box for about 10% of what we do here.
What Atlas really has trouble with is throwing people into international/oceanic world with very little training, expecting line captains to provide OJT. If you're paired up with new-hires fresh off OE, good luck feeling comfortable taking a break on a crossing.
It's not the new-hire's fault, mind you; it's the Atlas training program that skims over so much of the meat and potatoes of what we do here, hoping they'll pick it up once on line. Very unfair for everyone involved, trust me.