I found it on page 5 of the tournament guide...
"Please note that the last day of 9-Ball Teams overlaps the first day of 8-Ball Teams on Wednesday, July 25. Matches will not be rescheduled due to players competing in both divisions. Therefore, teams should have enough players on their roster to field an eligible team in the event of a match conflict."
So that answers my question.
Whilst I believe this is a good practice, I think it's disappointing that the team events overlap.