You know how certain celebs are always screwing up their financial affairs? Then they have to do some really embarassing project to get some money back. The Toronto Star even posited that 60 percent of NBA athletes go broke within five years of retirement.) Brian Cuban (attorney for Dallas Mavericks owner and billionaire blogger Mark Cuban's enterprises) has figured out why! It's because they lack life skills. They're not total idiots—they just trust the wrong people.