I am currently running a 5E homebrew campaign (with purchased modules mixed in) and the PCs are getting up there in level while the campaign itself is getting complicated in the intrigue, multiple plot points and interwoven storylines. It leaves me with a lot to keep track of and I'd like to offload running npcs, villains and some of the more boss monsters. We have enough PCs in the adventuring party so a candidate for the game would not be running their own PC but be expected to get to know whichever NPC they would play, and be short term (or possibly long term if they are cool with running different NPCs/boss monsters). I've considered opening a spot or two via Pick Up Game, but I'd be concerned I get someone who might not have enough time to get to know the character, or is so brand new to the rules they would not play the character to it's fullest. So, I am looking for comments and feed back from players - is this even something you would be interested in participating in (assuming you'd be able to play during the game time slot, and that other aspects of the game are agreeable to you)? Also, are there any DMs out there who actually do this? What works? How about PUGs?