Some people have that competitive spirit. Good for him.
If it's me, and I'm 36yo having already won a Superbowl, I'm saying cya to the NFL and taking the job that pays 2x as much for 5% of the work.
He got an offer to make significantly more money as an announcer. Take a break and do that for a few years. Come back when the Rams have draft picks and cap space.