When you win the League you need to kick on and buy absolute quality at top drawer prices or take a punt on someone below £10M. It's often too risky to gamble on mid-range players.
Mancini got us Yaya, Dave and Sergio, then wanted to push on with Hazard, De Rossi etc but wasn't backed.
Txiki gambled on Stones developing, rather than buying VVD and that has cost us dear and strengthened our rivals. Txiki does a reasonable job but given our unlimited resources we should have closed in on the Champions League yet we are still a way off. A big summer for him this year.