This thread is more than 5 months old. It is very likely that it does not need any further discussion and thus bumping it serves no purpose. If you feel it is necessary to make a new reply, you can still do so though. I am aware that this thread is rather old but I still want to make a reply.

In the short term you may have the stamina to get up earlier, stay later, and out-work the demands you face. But the inverse equation of shrinking resources and increasing demands will eventually catch up to you, and at that point how you involve others sets the ceiling of your leadership impact.