Backstage at MK, AK and Epcot always has 2 buses at peak times for CM's (MK actually had 3, two for normal cast and one that ran from MO7 to Pluto Park). In non peak times there is one (MK with 1 cast and one management bus) Knowing how security was in just getting the management bus backstage every time from Pluto Park, this is going to be a nightmare with guests. The only way it will work is pre screening all guests prior to boarding the bus like MK security does at Westclock. That takes time. My guess is that there will be 2 dedicated buses for each route one that starts at each park and it will be scheduled for every 30 minutes like the ESPN routes are.
What they will need is one security CM at each bus stop and one CM at the backstage entrance plus, of course, your drivers. It's really not the CM overhead that one would think. The pickup locations chosen are really close to guest areas and it would be tough to get lost. My issue with it is spoiling what Magic still exists by hopper guests going backstage where a child may see a character not completely in costume. The only character you won't ever see outside not in complete costume is the big cheese himself but all others are fair game. Yes, I know tours do backstage frequently but it's limited to guests over 16, this is for all but I guess they can pull the MK fenced bypass route to hide backstage operations.
What they will need is one security CM at each bus stop and one CM at the backstage entrance plus, of course, your drivers. It's really not the CM overhead that one would think. The pickup locations chosen are really close to guest areas and it would be tough to get lost. My issue with it is spoiling what Magic still exists by hopper guests going backstage where a child may see a character not completely in costume. The only character you won't ever see outside not in complete costume is the big cheese himself but all others are fair game. Yes, I know tours do backstage frequently but it's limited to guests over 16, this is for all but I guess they can pull the MK fenced bypass route to hide backstage operations.