I've volunteered with 3 Day Startup in the past, which is more about teaching students that entrepreneurship is an option, as well as highlighting the importanc

I've volunteered with 3 Day Startup in the past, which is more about teaching students that entrepreneurship is an option, as well as highlighting the importance of talking to users, but one of the things that consistently came up was that teams greater than 5 were nearly always the team with the most problems. My guess has always been that it's somewhat related to the design by committee or too many cooks problem, but we also never totally figured it out.