If you don’t finish then you’re just busy, not productive
One of the biggest Aha!! moments I had happened when I created my first company and realized how important joining people of different personalities together is in order to make them prosper. Making teams instead of solo work.For example a very good designer or visionary could see the forest but finds it very hard to face each individual tree. There are other people that can't see the forest by themselves but are extremely efficient working on tree after tree.You just join them together and magic happens.It is a terrible thing that our educational system favors so much individualism, even when most important work(Nobel prices, great products or services) are done in teams.When someone starts too many projects but finish none, for me is a symptom that he simply can't finish it alone. In my company I have gotten practice on making people finish things.This is probably the biggest thing Silicon Valley has, there is always someone who can help you and you help her too.