Another quick graph here pointing out that its not a huge surprise that David Moyes wasn’t given particularly long at Manchester United. Here we have the number of games overseen by all managers who finished 20+ season spells in the English leagues after World War II and the number their successors managed. Get above 1,000 and it all gets a bit hairy, clearly.
(The numbers on the side relate to games, obviously – and the managers mentioned are the ones that did the time, not their successors)
Again, very small samples sizes at work, but it tends to be two or three seasons below that mark, but after it – fewer than 100 games each. Swift.