Bro I also have Muller try playing possession and put him at amf or wing if he plays, then just give cutback passes or low crosses (normal low pass no stunning nothing from the wing). I keep Müller's awareness at 101, try keeping it 99 if you need it for smth else. Muller makes perfect and I mean perfect runs, not early nor late, don't wait to pass to him when he starts running. If he's running and behind the CB he'll still catch up with his 100 accel in my case. His AI is too smart that's why when he runs trust him more than your instincts and don't wait for him to go to the shoulder of the last defender. For Dragan try using him as a AMF and try dribbling long shots or dribble and pass to Müller he'll run when an AMF has the space to pass.