Just a thought, but there's also the element of pressure. I don't think that there's any question that Real is probably the most stressful place in the world to play; someone is ALWAYS going to be breathing down your neck for your spot, and if you're not winning 100% of your games, you're going to get strung up by the media and fans. The ones who are successful are the ones who can cope with that stress. C. Ronaldo, for example, is pretty well known for feeding off opposing fans' jeers, so the club is a great fit for him. He loves to be hated. Conversely, another former madridista, Ivan Campo, has been very open about the fact that at Madrid he was too freaked out by the under-a-microscope lifestyle to just play like he knew how. When he moved to a comparatively laid back Bolton side, his performance drastically improved, and he went on to become nigh talismanic for them for much of the aughts.