well the only reason Greece won 04 is because they played with heart and played with everything they got and gave it all every game.
And as a side note they simply waited till set peices to score off of crosses (7goals in the entire tourney) and they played very defensively until they could cause a foul in the other half of the field.
Props to Greece becuase it worked, that one year, but it ownt work again because teams know how to counter that style of play now