Montoya makes mistakes and stupid fouls, that much is clear, but if we were to measure whether a player is "good enough" by the number of mistakes and stupid fouls he makes, some of our starters would be long gone. Namely the one who's playing instead of Montoya. The difference between Alves and Montoya (and Bartra vs. Pique) is nowhere near as large as people make it out to be. Lucho is an idiot, which he has proved on several occasions so far, and that's the reason why some players aren't playing. Claiming someone is not "good enough" is just an easy way to shift blame from Lucho elsewhere.