I’m actually suffering/learning a bit from this, primarily the second part where that 5% need corrective action because like you said they take niceness as weakness. Trying to learn how to establish alpha in a case like that but without hurting CRM. For the first 200-300 hrs, it was the mechanics of the new left seat, eg, dealing with flying with left hand, dealing with ops, dispatch, the operational stuff. But now I think for the 300-700 hr mark in the left seat as new, is learning how to deal with these kinds of FO dynamics.
It’s weird and it’s largely a pain in the ass because those types are stealthy. Once upon a time, the problem FOs would come to the cockpit adorned (festooned?) with “Yeah, they wanted to make me a line validation pilot, but this was too much funnnnnn, I was on the 330, but I’m down to the 320 for overtime flying opportunities, then either (a) “I was #2 at (regional)” or (b) “I’m a Galactic Megatron Mk IV general brigadier wing czar in the guard” and then you know you’re going to have to establish alpha. But some of the ne’er dowells wait until the sheen is off on the second or third leg to let their problem child out.
Yet another reason I full believe in psychological profilings and expansion thereof.