Don Valentine, Founder of Sequoia Capital
One of my favorite videos regarding venture capital investing. Don Valentine explains that Sequoia looks at the market first: the size, the dynamic, the competition, and the growth. When the decision is made about the market at stake, then they go out to find the right entrepreneurs in those markets, not the other way around. This is contradictory to many famous investors who vow that they look that the team first (e.g. Ron Conway). Very much worth watching if you are into this stuff.