Marc has functioned in just about every non-technical capacity there is at a radio station in his career. PD, GM, GSM, host, you name it. And every advancement he has made was warranted. He could be doing anything he wants in radio, it just so happens that his passion is play-by-play. So what has he done? He has risen to the pinnacle of that very limited genre. The NFL. There is no promotion. It is VandeNirvana. Understand the professional constraints within which he functions and you will develop a deep respect for and appreciation of him.
As far as the fatty remark about hugs and bitterness, nothing could be more removed from the truth. I loved my time at 610. I have many friends over there and no enemies professional or otherwise. It was just a silly statement to assume that the 610 machine develops talent. The talent over there figures it out on their own. It would be more correct to say 610 has been a good incubator from which some fantastic talent has emerged.
Then again I am not a "professional" so what so I know?