Some fantasy owners think there's no need to roster more than one defense at any given time. And if you've been reading my buddy Alex Gelhar's streaming defenses article, you've probably been able to do a good job of mixing and matching with a new defensive unit each week. But when it comes to playoff time, you can't take any chances. Stock up on defenses with good matchups in Weeks 14 - 17 now. Here are some decent options to stash away: