Resting your best players is important as peaking too soon is foolhardy. Sven would never peak in such a naive manner. For example, in the last World Cup England cleverly eked their way through the group, playing solid if unentertaining football, before a solid win against Denmark. No peaking. Then they had to decide whether to peak against Brazil or to cunningly save that peak for the semi-final a few days later. In an incredible stroke of bad fortune, a ridiculus Ronaldinho goal put them behind and the strategy of not peaking was cruelly dispatched by a team who had innocently peaked too early in the tournament. That's football for you.