Because the one thing this club is crying out for is stability. That is planning for the long term. Mourinho is not a long-term manager - he will come here - win trophies, granted - but he will leave after Abramovich becomes involved (which, in my opinion, he is absolutely entitled to do, to a point), and will last a maximum of another three years. Look at Arsenal, United, or even Everton. The stability those teams have, particularly United, is part of the reason why they are so successful and have been over the last two decades. If we keep chopping and changing managers at the first sign of a bad run of form, long before it can be rectified, it might do the trick. But the fact of the matter is that this season represents the changing of the guard, and this transitional phase would have happened under any manager. We've seen the best out of the likes of Drogba and Lampard and Cole, and its time to move on and accept that with Ancelotti we can build towards an exciting future.