You said it. And he has none.
He takes a pass and gives it almost immediately to another Everton player a couple of yards away to the side or behind. He has no pace to drive forward with the ball, no physicality to screen it and wait to play a significant pass, and no vision in terms of what pass could possibly make life uncomfortable for the opposition. He recycles the ball ad infinitum. I dont see a player who takes responsibility to make things happen. One of the few things Koeman did that was right was to recognise his own calamity and so he dropped him.
There's a collective (and convenient) amnesia about how underwhelming Klaassen was when he did get game time.