These are the incremental advances in a very new area of player development. (The Arizona Diamondbacks do not currently offer Spanish education to players. The Minnesota Twins have offered informal Spanish classes but nothing further yet. Five MLB teams did not provide information in time or did not respond to questions regarding their education programs.) Andy McKay, the Mariners' director of player development, estimated that 90 percent of the major leagues' education resources are geared toward assimilating Latin American players. He and others are not sure how much that will change moving forward. They just know that it already has.