Rafa has done amazing with you. Still lost some games you should have won (Club World Cup is one) but considering none of the players are his buys and he's been there the shorter end of 6 months it's pretty good.. Higher points total than Di Matteo, won you the EL whereas Di Matteo got you knocked out of the CL with a game left, never won the super cup, never won the charity shield etc etc.
And if anybody seriously thinks Di Matteo is a better manager they want their heads looking at.