Before they traded for Rafael Devers from the Boston Red Sox on June 15, perhaps the biggest trade of the past 15 years for the San Francisco Giants was when they received star outfielder Carlos Beltran from the New York Mets on July 28, 2011. In exchange for one of the sport’s best switch-hitters, the Mets received a right-handed pitching prospect named Zack Wheeler. While more casual fans might have been baffled by this, those who knew the game (and knew Wheeler) understood that New York just secured a potential future ace.