Ralf should understand by now that we don't have the right players all round to play his preferred 4222 system, a good manager should be flexible in terms of tweaking and adjusting his tactics inorder to highlight the strength of the squad and hide the weakness.
If he wants more control in the middle of the park then a 442 diamond should be considered with Fred, Mctominay, VDB forming a midfield triangle, Bruno sitting on top of it, Ronaldo and Greenwood filling in the front 2 role.
Or a 3421 can be considered with Bruno and VDB sitting behind Ronaldo, McFred anchoring the double pivot, Telles and Dalot in the wingback role while Shaw tucks in as a left CB
Or he can go for a 433 with Bruno taking the left wing and inter-exchanging with Ronaldo and Sancho in the front 3 role while VDB, Fred and Mctominay man the midfield role.
Be tactically flexible, sweet Ralf.