You've made your picks, and your roster is set. But to hoist the championship trophy, whether you're playing for fun or in a $10,000 fantasy league, you're going to need to execute some smart trades throughout the season. "Winning takes commitment," says Jake Ciely, a senior analyst at RotoExperts Fantasy Sports Network. "But it's really not that hard. All the information is out there; you just have to put in the time." Here's how.