Dunno if this has been suggested yet but I'm wondering what if: Your gang bases have Slave/ Merc slots (mercs not so much) that we can fill with "guards" depending on the size of the depot and the caps required (or food anything that can help balance it out) you get a certain amount of slots so let's say a 30k depot can hold 3-4 "guards" but these "guards" can be taken by any trusted or accepted member of a gang as a follower...
it will help gang members lend slaves/mercs to another when they are offline and it also helps to guard your base...to avoid the more then 5+ followers you can set a limit to how many "guards" one player can post ex. max 2 if lets say magnetic personality and min 5 cha... it also wouldn't even have to affect your follower count... this is really just a suggestion to allow the transfer of slaves or mercs placed in a base to other gang members that need it at the time without having to log on and tell your slaves/ mercs to "have someone else command you"
the player could simply ask the "guard" to "Follow me." in which the npc responds with "Yes sir." and when your done with it you can tell it to "Go back to guard duty, I'm done with you." moving the npc back to his original position...
so yeah public slaves at bases anyone can control if needed. post yer complaints!:P