West Ham are not a club that hires and fires managers willy nilly so it says everything that Julen Lopetegui is on the brink. David Sullivan very much prides himself on being an owner who doesn’t sack managers lightly at West Ham. While noble and very much how things should be – in an ideal world at least – that is not necessarily a trait that breeds success in the modern game. There is little evidence to lean on nowadays that blindly sticking by one manager for a prolonged period brings success. From West Ham’s point of view the evidence is there to suggest patience can be rewarded. In the Pr…