Organized Team Activities, that stands to reason. Thanks.
I kept trying to come up with a phrase that started with Off-season and could not figure out the T and A (no pun intended) portion of the phrase. It is usually used in context with terms like off-season workouts, mini-camps. Then OTA's are mentioned, quite often. The other two are pretty self-explanatory, but that has been a head scratcher. Once again thanks.