Then there's something wrong with your eyes if you believe that's an offside! This is an angled view and if it's viewed right through the line you would see that Fellaini's head is right onside.
Mata's goal was just a yard off and he was sprinting as well, looked onside in real time for everybody on the pitch - refs and players.
The system isn't built around Fellaini. He just provides an extra option. Against Villa, he was completely anonymous and we still outplayed them. I completely disagree with the fact that we're relying on 1 person - quite the opposite actually - we are playing AS A TEAM for the first time in ages, everyone's on the same page and knows what they're doing (except our CBs in some cases...).
If you think that we didn't demolish you, outclass you, outplay you in every way possible, except for the first 10 mins, then the problem is you and I have nothing else to say.