If McNulty and others are not doing as they are told it would be interesting to be a fly on the wall behind the scenes to understand how it is explained to them what they are supposed to do and how its extensively practised and put into place.
I've seen many of Wilder's interviews now and they all remind me of some of the not so good teachers at school who would tell you to do something without explaining it properly or practicing it and they would then get angry with me and tell me I'm thick when it didn't work out. After a while I'd just ignore them and do my own thing.
The better teachers at school would explain we are trying to go from A to B, this is the theory you need to understand, these are steps involved and now we are going to practice each step until you are good at them then stick it them all together over and over again. If I got it right there was praise, if not we'd practice the dodgy bits until I got it right. There would be praise to motivate when needed. I loved those teachers and they got the best out of me and I did my best for them.
Take corners for example. Every game we have about 10 corners but how many times do we ever look like scoring from one. What evidence is there of the players have been taken through the good teacher approach, having a plan, learning all the steps each should take, practicing it to death and then doing it on the pitch. None. We just hear the team being criticised by Wilder for not scoring enough goals and not doing as they're told.
My suspicion, and it is only a suspicion, is the players are just being told what to do without the good teacher stuff and enough practice behind the scenes and after a while the players just ignore it and do their own thing.