Player Development Edgar Martinez David Popkins Kevin Seitzer Chris Valaika Kevin Long Matt Hague Matt Borgschulte Brant Brown Cody Asche Training Methods Victor Rodriguez Bat Fitting Tim Hyers James Rowson Insights Grant Fink Merv Rettenmund Texas Rangers Player Communication Ryan Fuller Jeremy Barnes Aaron Leanhardt Eric Chavez Rudy Hernandez Dillon Lawson Milwaukee Brewers