This was almost certainly what Sam Allardyce missed. Retirement is nice but cruises and playing grandad lack the sheer capacity for storylines that football provides. How’s this one? Ilkay Gundogan looked the most complete midfielder in the world for 84 minutes, breaking the Premier League record for most touches in the match, and transcending the match with his class. And, yet, he tramped from the pitch a few minutes later in shame and his manager in high dudgeon. Pep Guardiola couldn’t even look at him. Hubris? That’s supposed to be Allardyce’s flaw but here it struck a hitherto mea...