If a startup's team is bad, the company will be bad and probably fail. Building great founding team is the best thing you can do for your company.
Startups should think through and get advice about their legal and business structure early. Legal structures for startups provide levels of protection, tax benefits, and a method for sharing ownership among the founders and investors that don’t exist outside a legal umbrella. Getting this right at the beginning will save loads of time later and just isn't that hard to take care of.