Infield fly...ordinary effort?

[fiasco]

Had a sitch in a game last night...a short, stocky girl was playing second base. One out, runners on 2nd and 3rd. Batter hits a pop fly (inbetween a high pop and a blooper) over the 2nd baseman. It lands maybe 6 or 7 feet into the outfield.

Now, does ordinary effort mean for any player, or for the caliber of player you have on the field? In my opinion, most people should have been able to get to that pop fly. However, this girl reacted slowly and she was slow even after she reacted.

I called infield fly because I thought it should have been caught with ordinary effort. The ball landed just outside the infield. Defensive team was pretty upset as a run scored in the ensuing confusion.

Thoughts?

Also, a question I'm pretty sure I know the answer to but want to clarify. When infield fly is called, there is no force at 2nd, 3rd and home, correct? Since the BR is out, runners have the option to stay at or return to their bases, so no force out?

Thanks. Sorry if this is too Umpiring 101.