when the manager comes out and said they had to make changes just to deal with him as he was a threat he cant of been doing to bad, won a lot of corners as well
on the flip side he can say that to just confuse pellegrini. because if i was i would do just that. prevent the opponent to figuring out their problems.
if i was the opposite manager shutting down navas wold be the easiest job because he is a one trick pony. the moment he receives the ball as defender you already know what is coming perhaps even before navas does.