Possible Clues:

• Ex-MLB commish Bud
• Bud in the Baseball Hall of Fame
• Former MLB boss Bud
• Bud who was baseball commissioner
• Bud in baseball's Hall of Fame
• Bud inducted into Cooperstown in 2017
• Baseball commissioner during the steroid era
• Baseball commissioner under whom interleague play became a reality
• Manfred succeeded him as baseball commissioner in 2015
• Baseball commissioner after Giamatti and Vincent