From the New York Times, a sappy little recurring feature in which some rich guy you never heard of provides one paragraph's worth of "wisdom:"
How to Multitask
By Matthew Mellon
I find that I'm a much more efficient multitasker if I talk about the big picture and don't waste a lot of time on specifics. People can be slow and too specific with detail. I prefer to just lay down the footprint, then worry about the specifics. Otherwise you just get too overwhelmed.
Personally I find that it's more efficient if you never get to the specifics at all. That's what your people are there for, right?