Is this aimed at me? Do you disagree with any of that assessment from any of his time here?
His most successful spell was in the 5-3-2. Where his role was hold shape, get out to the opposition FB/wide player and get back into shape. Then on the turnover run as fast as he can to try and get in the box and get on the end of something/ pick up bits and pieces. Limited technical requirements, emphasis on work rate and positioning.
He simply cannot play facing the wrong way though, hence the CB in CM. But then isn’t a good enough defender to be a CB. None of that mattered in the 5-3-2, but he needs to be offering more in a 3-4-3.
As TT says he could do a job in a 4-3-3 or 4-2-3-1. as the water Carrier but we don’t look like playing that