.... You can't have players only of one type, z. Sooner or later, you get found out, and have nothing to fall back on. The best teams can always switch to a different style with substitutions. Not saying of Fellaini in particular, but you also want to have slightly different mould of players as a Plan B (or even Plan C).
You never see Pep or Jurgen switching to a plan B or C. How about make Plan A good so you don't have to bring on a tree to get something out of the game.
