I don’t know what Tchamadeu was asked to do but it can’t be what he actually did. He looked like he was on drugs, and not the performance enhancing type
I think he’s a great player with a bright future, but he isn’t a defensive/centre midfielder. He kept popping up there and taking 3 minutes or 4 touches to get it out of his feet before playing a pass.
I don’t know if the plan was for him to come inside to give Manhoef more space and get him 1v1 agains their wingback but it didn’t work at all. Thankfully when he went to being a right back after about half an hour he was depdendable.