Lots of well-known examples. In Jim Collin's Built to Last, he mentions how many large companies were started by founders without a specific idea, just a solid

Lots of well-known examples. In Jim Collin's Built to Last, he mentions how many large companies were started by founders without a specific idea, just a solid team (Hewlett-Packard being a major example). I do realize the book gets some criticism for lack of scientific rigor or the performance of companies involved, but the example is still worth mentioning.