He is awfully good and here's some evidence.
U.S. coaches may think they have it tough, but "the average manager in England lasts 1.23 years on the job". (In the EPL, it's 0.83 years.)
Dan Shaughnessy puts a Godfather reference near the beginning--"The Patriots are settling all family business in this Deflategate vendetta"-- and ends with an even better one. (Which NFL team is Fredo?)
Hate 'em if you want, but they're just smarter than most teams.
"Bayern Munich forward Robert Lewandowski had one of the more incredible hot streaks ever seen in soccer . . ."
See them here. The fifth one is a beauty.
Some fine examples of big upsets listed here. Lake Placid and Duke-UNLV are, to me, particularly memorable.
But the dopey AP reporter missed a big one.
"Football" is this case being what we call "soccer".