I don't buy this 'sum of its parts' nonsense. It's the same type of logic that led Didsbury Dave to imply Kenny Dalglish, Paul Lambert, Brendon Rogers and Alan Pardew would be preferable to Mancini; because they at least produced teams that perform better than the sum of their parts last season - though not so much this season. I'd rather have evidence that managers can win trophies with their parts. Mancini's won trophies with four clubs so he's done that.
Yes, there's been some regression this year, but there's been regression in our squad too. Last season, Balotelli and Johnson scored 19 goals and 3 assists between them in the league. They haven't been replaced as Sinclair has 0 goals and 0 assists. Meanwhile, the rags have outspent us and bought Van Persie, which undoubtedly strengthened their squad, and did so early on in the window. Unfortunately, that has had the effect of regression. You have to remember anyway, that progression isn't linear. We've had two and a half years of progress, which I have every expectation will resume next season if Mancini is given the chance. You have your good years and your bad years. Have the rags been in constant decline since the treble? Well, no. They've had decline years in which they won nothing, including a trophyless season last year, and including a period where they went without a title for three years on the bounce, and they've had progression years, where they won the title consecutively and added another Champions League. This is a decline year for us, but I'm confident we can bounce back. A poor season, in which we might still win an FA Cup, is not sufficient reason to warrant sacking him when he's had his squad weakened. He deserves another season in which Mancini hasn't been pissed about like he was last summer and this January. Let him make a few marquee signings i.e. the players we were supposedly going for last summer, and failed to sign, and don't make those signings in the last week of the window so he doesn't have pre-season to find out how he can best utilise those players. If he still fails to make progress then, alright, he's got to go.