Nil Further. Dunno! I never met the guy and I never flew with him so I don't know how 'bad' he was. Perhaps there was a lack of evidence. Maybe there were too many F/O's who would rather not speak up or file an ASR when he did do something nonstandard, odd or dangerous. Perhaps Jarjam can enlighten us.
I agree that sweeping the incident and the Skipper under the carpet wont resolve the issue...if there really is one. Suffice to say that all the F/O's I've flown with recently wouldn't have allowed themselves to get into such a situation and neither would I. I genuinely think that the training is very good. But, there are always going to be a few bad apples that nadger the reputation of the training department and their colleagues! And we all know, from sharing sim sessions with them, that these people CAN do the job correctly, they just choose not too.