there isnt much of one, they dont need a graphic manager and they dont need 4 people to sit around and do nothing.
1 or 2 people with management on skype for whenever they need work done would be enough, or even keep the private forum where department managers can post requests directly instead of a middleman-lets-take-10-weeks-to-do-a-task-system currently (like ive suggested many times before - a manager isnt needed to run graphics - the department managers should crack the whip and monitor their own requests.)