He doesn't make runs in behind because there is literally nobody in the team playing the passes.
I have seen him run in behind loads of times in other games for the midfielder.. mainly Mount.. to turn around and play it back.
He has zero confidence in the providers so then runs out wide or deep to fetch the ball and he isn't good enough to make something happen from there... it isn't his game.
He needs to be running onto through balls or attack low crosses.... which we do nether of lol.
If Werner was playing for Liverpool or City he would be scoring regularly and that's the simple truth.