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The NCAA tournament bracket has a place for four additional teams, and so does ours.
Athletic Region: Ben Zobrist, Tampa Bay Rays
Zobrist isn't brilliant at any one thing. But since he can hit, hit for power, steal bases and play defense, it's no wonder he's third in MLB in fWAR since 2009. I chose to keep him out of the top 16 because a) his 2013 season wasn't great by his standards and b) the Athletic Region really is that loaded.
Slugger Region: Matt Carpenter, St. Louis Cardinals
Carpenter only has 278 games and just over 1,000 plate appearances under his belt, but one thing is already apparent: Holy carpentry, Batman, can this guy hit. He followed up a 126 wRC+ in limited action in 2012 with a 147 wRC+ in full-time action in 2013, and he led all hitters in hits and doubles.
Righty Region: Homer Bailey, Cincinnati Reds
Bailey has thrown no-hitters in each of the last two years. Give him $50 million for each, and you get a $100 million contract. However, the Reds probably paid more for his upside, as the last two years have been the best of Bailey's career and he's only getting better. By fWAR, he was a top-25 pitcher in 2013.
Southpaw Region: Glen Perkins, Minnesota Twins
Last season was Perkins' first as a full-time closer, but don't let that fool you. It certainly wasn't his first year as an elite reliever. He ranks 10th among relievers in fWAR over the last three seasons, as well as 13th in FIP. Which, by the way, is his personal favorite. A good man, that Glen Perkins.