Makelele is one of a kind, not really anything to base opinion on, especially because he has nothing to base his opinion on if he was one of those important players for Chelsea in later years. Capello ? I don't know, didn't hear anything.
Leon, Canales or Ramos ? How many of them complain about the coach in the media ? Leon has no reason whatsoever to moan, because there has to be a justified reason as to why he doesn't play despite many free spots and opportunities to get on the bench. Don't see why you bring Canales or Ramos when they were positive when speaking about the coach on some occasions.