As it is, Mainaya's legacy as GM has improved greatly from the time he was replaced by Sandy Alderson in 2010, as what was thought to be a barren farm system has produced several vital Mets, including Matz, Matt Harvey, Jacob deGrom, Jeurys Familia, Lucas Duda, and Juan Lagares, that were drafted or signed internationally during the Minaya regime. None arrived in the big leagues quite as spectacularly as Matz.