Yh I agree but that's more of a philosophy change - I made a thread on it quite recently re rethinking our CM trio because we're very poor when it comes to managing games. if you think of how big we are as a club and how dominant we were in the PL, we have a seriously disappointing record in the CL and it's because we don't place any value on ball retention, we're always very cut and thrust and reliant on the counter against the top teams.
I think of it like this, if you look at our most recent CL losses to Barca, I think most would agree that neither team is as good as it was then (us in particular) but neither team has fundamentally really changed the way they play. This would be different if LVG or Mou was still here but with Ole we have very much reverted back to the United 'of old'. Barca are not the tiki taka obsessives they once were but are still a team that favours heavy possession based attacking football. Considering that, I think it's pointless to go in with the idea of trying to catch them on the counter because, quite simply, that's what they pretty much face every game and we don't really have the players. Additionally, they have a superb sweeper keeper so any long balls over the top need to be eye of the needle type passes to actually pose any threat.
Maybe something like Pogba as a SS (who then sits on Busquets when we defend) which allows an extra CM in midfield would be a way to think about it. We won't boss the possession but when we do have the ball, we need to keep it, even if it's just passing around our CBs for a bit.
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