Related Clues:

• Diamond heads?
• Ones making some safe decisions?
• Basic training figs
• Officials on a diamond
• Some Little League volunteers
• Out callers
• Sgts., e.g
• Sgts. and cpls
• Sergeants major, e.g.: Abbr
• Lt.'s subordinates
• Cpls. and sgts
• Some PX customers
• Callers of strikes and balls
• Face-mask wearers
• Ball callers