Creative Staffing The BOSS Group is an award-winning creative staffing firm for interactive, creative and marketing talent. Proposal Staffing Proposal Development Consultants provides quality experienced proposal contractors for federal, state, and commercial proposal efforts. Operations Excellence Cella provides management consulting and operations support specific to in-house creative departments. Not sure which way to go? Let’s get creative. We’re experts in in-house agency staffing and operations. We can help you identify pressure points in your organization and solutions to address them. Give us a shout–we won’t bite.