I think if you are trying to get a program started, you could use as few as 14 for JV. I think it would depend on the strength of the kids you do have, to decide how many you need. If my kids were one of only 11 that wanted to play, they would still want to play.

If you don't have enough show up, can you offer something after school for those kids that don't make varsity to build for next year?