Mark Cuban, Troy Aikman & Scott Harrison. A few of my favorite Why Not Now? snippets from 2016 are inside this episode. Billionaire Shark Tank personality and NBA team owner, Mark Cuban, shares his pivotal story about getting fired, exclusive negotiating tips and how he manages to take zero phone calls a day while reading three hours a day. 3x Super Bowl Champ, Troy Aikman, tells us about the best thing he has ever done for himself and what happened when his daughter told him she wasn't going to be a pro athlete. And Scott Harrison, charity: water founder, talks about how he did a 180 from being someone he didn't like as a club promoter to raising $200 million for clear water efforts.