That same squad sailed into the play offs with automatic promotion form under his successor. Then automatic promotion and an FA Cup semi Final, despite losing Gibbs White and Norwood, Fleck and Osborn (who you mention) being even worse (and with Slav's reserve keeper Wes in goal

). If a promotion squad isn't an elite squad for that particular league, then pray tell... what is?
United never played "Wilderball" after JOC got injured. That was the problem. United reverted to an orthodox 3-5-2 and were exposed. At least understand what you're criticising before you criticise it.
Boro had a huge upturn in form after playing that particular system, btw, you've skipped a season. They also had a successful cup run beating Spurs and Manure
Carrick has achieved, well, what exactly? Answers on the back of a postage stamp.
"Supporters like you"...oh dear. Supporters like me think a manager shouldn't be crying for another nine players with United close to the bottom of the league with one of - if not the - best squads in the league. HE paid 60k a week for Olsen by the way. Hence his nickname "cheque book Slav". Without the blank cheque book he had at Fulham/Watford he's useless. Slav, relative to the side at his disposal, is in a competition with only Robbo for the worst manager we've had post Harris. It was colossal underachievement. It's not a shock to see his record of abject failure here continue post United. He'd have this squad bottom six at best.