I have heard from a lot of folks here who know some people in Athens who say that Muschamp would be very interested in returning to his school to be the DC. However, today's AJC sez that CMR isn't planning to make any coaching changes to his staff at this time. That may or may not change after the season is over. It depends on how good or bad we look over the next 2 games.
The only way Martinez loses his job is if Michael Adams or some of the other higher ups tell CMR to fire him. We'd have to have a season like this next year too before he even thinks about it.