I believe the main point that has come across here is that if you're on the staff team and are able to do more then your assigned task and are willing to help/can balance the workload of multiple tasks, go for it. This is already being done of the staff team, some PR's might have graphics access already as might some LAT's have limited script access.
Edit: Same thing goes to the community, if you can create some amazing GFX or can make creative levels (and are willing to contribute to the server), we would gladly accept your help/contributions.