If it's truly a bubble I don't think it matters that much where it's located, but the union was never going to accept being quarantined for potentially that much time. When they were talking about doing the Cactus/Grapefruit split rather than divisions, they were talking about possibly playing three games per day at Chase Field, but that leaves two more games that would have to be outdoors and it was 117 degrees when I looked yesterday afternoon. Plus I don't know if they wanted that many weekday afternoon games for TV purposes (the scheduling post-restart has been awful, it would have been great to have more afternoon games for the work from home crowd, but all night games, all the time has been the rule of the day).