“It varies at different stages of companies, but when I think about Series A and Series B companies, if you're doing more than one, one-and-a-half things, it's probably too much. Focus means knowing both what you say yes to, but it really means knowing what you say no to. An organization has a hard time holding more than one or two goals in their head. You need your organization to have those goals, so they can make decisions by themselves.”