Playing 3, 4/5, 2/3 system without having to play 2 sitters in skipp and PEH I think you need 3CBs which have power, pace and reasonable passing ability between them. For me Back 3 of Dav, Romero and jasphet would have that with Dav and jasphet pushing our into midfield to press along with either skipp or PEH. That way we can get more ballers into the team. Midfield 3 of ndombele gio and one of skipp or PEH should be good enough against most teams. If you have two in there then play PEH and gio and push tanguy forward. We have better forwards than CM/ defenders so need to find a system which gets more of them in the team.