I think Raven on creative is a bad idea. Considering he is such a dominating personality, he would butt heads with guys like Russo & Bischoff like nobodies business, and be out the door quicker than you can say "Quoth the Raven nevermore".
However, I DO like the idea of basically having him take over the whole James Mitchell position as the promotions primary heel manager. Just use his superior oratory skills to capture weak minded newbies like Ink Inc. and a few others, amass himself a stable. And allow him to basically manipulate them into doing his bidding.