How to explain the decades-long, ever-evolving genius of Sir Alex Ferguson – arguably the greatest manager in football history?
It's a question that has aroused the interest of countless biographers, inspired millions of column inches, and still regularly crops up in football podcasts every week. More than 11 years after Ferguson's retirement!
Gary Neville has tackled the question more often than most: nowadays, one of football's most respected commentators and pundits, the former Red made all 602 of his first-team appearances for United under the wily Scot.
And so frequently is he asked to explain Sir Alex's multifaceted genius, that Neville recently decided that the most efficient course of action was to prepare some notes that could be stored on his phone, readily accessible for whenever the topic came up.