Steve, who was also 26, had spent parts of seven seasons with the Cardinals, putting together a record of 77-62, an ERA of 3.10 and striking out 951 to just 449 walks. A three-time All-Star, Steve pitched in three World Series games with the Cardinals in 1967 and 1968. On paper, I guess the trade seemed fair for both teams at the time.
Only that Steve "Lefty" Carlton would go on to have one of the best single-season pitching performances in the modern baseball era in 1972. For a bad, bad team, Lefty won 27 games, and he led the NL in ERA (1.97), complete games (30) and strikeouts (310). Overall, the Phillies won just 59 games in 1972. Lefty took care of 27 and every other person on their pitching staff managed to win just 32. He was easily the unanimous choice for the NL Cy Young award, receiving all 24 first place votes cast.