Investors look for great teams
Venture capitalists, with the exception of people like Don Valentine, would tell you that they'd rather fund a great team than a great idea. The reason is that if they have a bad idea, great teams can figure out a better one. Mediocre people even with a great idea can screw it up in its execution. Or if they have a bad idea, then they aren't going to be in a position to think about how to change it. There just going to pursue it blindly.