This is a great quote.

Biz Stone likes to think small. “Creativity,” he says, “comes from constraint.”

[From What is Biz Stone doing?]

Great because it is true. Companies with excessive resources rarely deliver the return on new product creation that companies constrained by cash do. When you don’t have anything to waste you tend to make better decisions because your filtering is more deliberate, but when you have “google money” you tend to spread it around on too many things that do not yield results because it’s easier to say yes than make hard decisions.

I realize that Stone was referring to Twitter’s imposed constraint on the number of characters per message but what he said really does apply very broadly to business strategy in general.