He's going to make out better than most think. OC of an NFL team or a head coach for a WAC team. He won't go into exile and be QB coach for Tulsa.
Sark knows how to play the game. That was a benefit of coaching at USC under Carroll. And honestly, after watching Petersen and Smith, Sark is a decent OC. He's not a good head coach, but I don't think he's worthless as an assistant. If Kiffin can work for Alabama, Sark can work for a similar program.
The one telling quote from Helton was about not kicking Sark while he's down. You know Helton saw him fucked up on a regular basis, if not every day.