It's often said that the best way for baseball teams to build a championship squad is up the middle, with middle generally referring to catcher, second base, shortstop and center field. In Austin Jackson and Alex Avila, the Detroit Tigers -- a team with World Series aspirations -- have half of that equation solved, but second base and shortstop could once again grow to be the team's Achilles' heel.
6mJerry Crasnick and James Walker
13hMark Schlabach and Brett McMurphy
10hAndrea Canales | One Nacion