Jose Tabata - A line drive hitter who is stealing a lot of bases this year. He gets a lot of infield hits, but also has displayed some impressive opposite field gap power lately.
Neil Walker - With high average and pretty good power, Walker hits better from the left side, but can also do damage from the right side as well.
Pedro Alvarez - An impressive power hitter who is struggling with strikeouts, lefties, and identifying breaking pitches in general. You'll see him freeze on curve balls and unless he's looking for it, he can't adjust right now.
Argenis Diaz - A defensive wizard at shortstop who has had practically no bat in pro ball, Diaz came over in the Adam LaRoche trade from Boston last year. Diaz's approach was changed by the Pirates at the beginning of the season to utilize right field almost exclusively, and he has responded by pushing the batting average north of .300. This at least makes him interesting enough to put on the radar.