Well, there's a reason why he made the Champions League and at that stage, you shouldn't be downplaying your opponent's ability. He has pretty decent players. I agree that 4-0 may be a bit tough to swallow, but look at your under performing players - Your DMC got outplayed, and attacking-wise your AMC and ST missed chances or didnt do anything. His has a solid defence, don't underestimate 4 star players, they may have been very good 6 star player which he kept til now.

My advice, find another role for your AMC, he doesnt seem to enjoy it there.