I realize MBAs have a bad rap (disclaimer, I'm getting my MBA), but I think they can bring a lot of variety to the start-up scene. The MBA class is chock full of students from almost every industry who know very well the problems these respective industries face. Furthermore MBAs approach problems through different lenses that may be more sensitive to firm strategy, finance, operations, accounting, etc. These approaches may uncover new insights into the business or market.