In the weighted average, these 50 players scored about 52 goals above expectation for Real Madrid or Barcelona, and they scored about 41 goals above expectation for other clubs. This result suggests that most—perhaps 75 to 80 percent—of the “superteam” effect is a relatively simple equation. Real and Barca spend large amounts of money to buy players who are excellent finishers as well as being elite in other aspects of the game, and there is nothing surprising about guys who cost over $50 million clinically dispatching a few extra chances. They do the same playing for Udinese, Arsenal or Valencia.
While this is broadly true at the population level, there is one striking exception. Gonzalo Higuaín has simply been a different kind of player since leaving Real Madrid for Napoli two years ago. He had been one of the most deadly finishers in La Liga, scoring 75 non-penalty goals from 263 shots, beating his expected goals (58 xG) by nearly 20. For Napoli Higuaín has scored 27 of 191 shots, exactly matching his 21 expected goals. Indeed, Higuaín accounts for a significant amount of the variation between “superteam” finishing and “other club” finishing. While greats like Gareth Bale, Luis Suárez and Zlatan Ibrahimovic have maintained finishing rates around their career averages, this is not true for every player equally.