My worry with Martinez is that his main strength seems to be the style of play of his teams. I'd say about eight out of ten Spanish coaches would make their teams play the same way, it's just how the Spanish like to play the game. Then because we're so used to percentage football in England, when we see teams play like that in the Premier League it seems different and clever and exciting. In reality though you could get any of the decent managers from Spain over here and the result would be the same. How well they'd fare results wise would depend on how good they are at actually managing, signing players, motivating them etc., and Martinez hasn't been particularly great at that.