With Mahomes's new contract, is Kirk Cousins suddenly a good deal?

QB money changed in the blink of an eye

*Photo courtesy of the Minnesota Vikings

Remember when $84 million guaranteed was a lot of money?

Well, Patrick Mahomes blew that number out of the water on Monday when he and the Kansas City Chiefs agreed to a 10-year contract worth $450 million (and could be over $500 million if he earns all of his incentives).

But all of you are familiar enough with t…