As of today's standing, teams 1-7 belong in PWA. Teams 8-15, belong in PW BB and the remainder, in PW B. This will all change as the season goes on but the bottom five teams are going to stay where they are.
Not fun waking up a 4 am to drive for two hours (one way) to play a team that is going to get blown out and doesn't have a chance to win. Even less, be competitive... my two cents.