Focus.

Fred Wilson needs no introduction to those in the VC business.  His blog at www.avc.com
& the community he has created there (see the comments) is a great resource if you are an entrepreneur or would simply like to get a sense of what the startup business is like.

Fred's been reading the biography of Steve Jobs & writes about it:

Focus is critical when you are three people, when you are twenty-five people, five hundred people, and ten thousand people. You can always get farther faster by saying no to too many projects and too many priorities. Pick your shots carefully and hit them. That's what Jobs did to turn around Apple 

The comments are illuminating - not everyone shares the awe around Jobs' management styles