There's no doubt we've missed Coleman from both a defensive and attacking perspective, but once we've been able to play Rooney in a suppoting forward role, we haven't missed Barkley at all. Rooney is technically better, an infinitely better finisher, far more creative and by a country mile more intelligent.
What we have missed, from an attacking perspective, is a striker who actually scores goals who could thrive on the service Rooney and to an extent, Sigurdsson provide. Lukaku was crying out for a supporting forward of Rooney's quality throughout his time here and had we somehow managed to keep him would have enjoyed a far higher standard of service than he did in previous seasons. It's a shame, but there you go.
The idea that had we had Lukaku up front in this side we'd only be 3 points better off is, obviously, ridiculous. The difference in quality of service and extra supply of goals we've enjoyed, mostly from Rooney as an upgrade on last season's supporting forwards, has carried us this far. Had we had a quality striker up front like Lukaku, we'd be far, far better off.