But if I'm Patrick Mahomes, I bargain for a 10 year deal at 200M with 200M guaranteed with a bunch of stipulations. I would want X% of the salary cap spent on O-linemen and Receivers to make up for the difference in salary between myself and other elite QBs. I'd want a contracted-for spot at the table with my agent to discuss off-season trades, FA signings, and draft picks.

The dude is one of the most (Possibly the most) marketable guys in the NFL. He's going to double his salary in endorsements, and if he can leave the NFL with his body intact and a good supporting cast that wins 2-3 more super-bowls, that's going to be better than limping into retirement with chronic pain and 3+ additional concussions that could very likely shave 10 years off his life.