Play callers

• Calls out?
• People who judge balls and strikes, for short
• Judges based near bases
• Plate cleaners, at times
• Works at the ballpark, maybe
• Diamond V.I.P.'s
• Works at home?
• Decides what's fair
• Diamond officials

Wikipedia Word definitions in Wikipedia
UMPS may refer to: Unionville Meadows Public School University of Moral and Political Sciences, now called Thammasat University