Disney cast members will be in charge of cleaning players' rooms, public spaces like restrooms, and other high-touch areas like handrails, lobbies, and lifts on a daily basis (sometimes even multiple times each day). As reported by USA Today, training and practice equipment will be sanitized between uses.
The big question mark here is that cast members will not be sequestered to the NBA campus, leaving the potential for virus transmission as they come and go from the "bubble." They will be required to wear masks and gloves, follow social distancing guidelines, and only enter guest rooms when players are not present.