Yea there are some mistakes that can't be controlled Juke's penalty, keeper mishandling etc.
But there are also things that can be done on the training ground to minimise mistakes.
Well if Clingan is passing without looking (Something Poyet identified) shouldn't Thorn identify this as well and try and coach it out of him or at least be aware of it.
If people are making mistakes because of miss communication isn't that something Thorn should be encouraging on the training...
From what I could make out, there was a 3 way miscommunication between Murphy, Cameron and Wood. The defenders wanted the keeper to take it and Murphy thought the defenders were gonna deal with it.