Each week, GolfChannel.com offers thoughts on "what we learned" from the week. This week, our writers weigh in on a 14-year-old phenom getting an invite to the Masters, Sunday comebacks for Ian Poulter and Stacy Lewis, the Tiger Woods-Rory McIlroy "friendly" that seemed to overshadow a big-time event, and Tom Lehman's impressive finish to his Champions Tour season.