He can tell him about his days as the Derby manager, that'll sort them out
As much as McClaren wouldn't have been my first choice, and he has made some s*** decisions, I don't think he can be blamed all that much, the players are just half arsed and couldn't give a f***, and that has been instilled into the core of the clubs over the last 8 years.
It's up to him to motivate them though.