Art Show - Who Should Run
It's best if the Art Show is run by someone who's had experience with that type of Art Show. Different groups and regions often have different styles. (For example, the Incredible Floating East Coast Art Show Crew uses a steel-pipe-and-pegboard "tinkertoy" set-up, and generally does not allow Quick Sale. Pegasus Management, which dominates the Midwest US, allows Quick Sale, and uses the Dorsai Irregulars for security.) It's also easier to recruit a crew if you've worked for them on their home convention's art show, and it helps you meet artists and encourage them to exhibit art at your convention. The better your crew, the less experience you need.
The Art Show Director has four main jobs precon & post-con: recruit people to work the art show, recruit artists to exhibit in your show, send out & track paperwork, and (post-con) pay the artists in a reasonable time (1-2 months). At the show, most jobs can be delegated, such as set-up, tear-down, artist check-in, artist check-out, bidder registration, voice auction, layout, closeout (noting final bid winners), security (bag checks & overnight), sales, and print shop (if any). With regard to layout, a preliminary layout should be done by the Director pre-con, but some fiddling may occur at-con. It is important to fill, but not overfill, your space! Empty panels/tables look bad, but artists who have reserved and paid deserve to get their space, too.