My only issue with the infield fly rule is that the umpire should be required to yell out infield fly and not just signal it. It is difficult for both girls and base coaches to watch the play and and look to see if the umpire has raised their hand. I really appreciate it when an umpire does yell it out but it is less than half the time in my experience.
It is a requirement and standard practice that a verbal is included with the Infield Fly signal.....
However, with all the parents and coaches yelling RUN!...NO, GET BACK, SHE DROPPED IT....GO! THROW THE BALL! TAG HER!, etc, etc.......the umpires call is often not heard.......