Related Clues:

• Baseball's decision-makers on the field
• They enforce the rules
• They call balls and strikes
• World Series sextet, for short
• Baseball referees
• Decides what's fair
• Ballpark officials, for short
• Strike-zone judges
• Prime us acting for those standing in the middle
• Experts in the field?
• MLB officials
• Decides what's fair, among other things
• Officiates at T-ball
• Judges and posh MPs restraining anger
• Cricket referees