They say you can't win w/ a mediocre QB, maybe its because medicore QBs make insane money.
QB negoitations don't start at Watson's or Mahomes contract. They start w/ Carson Wentz who makes $30M/year and who is terrible.
Every agent prob brings up carson wentz's contract. So what you have is middle of the road guys like Cousins and Carr making crazy money. What if say the Giants just offered Daniel Jones (who's getting better w/ exp and help) say 4yr 75-80M in a take it or leave it and use the extra money to build around him. And if he refuses, then what, is there gonna be a bidding war for Daniel Jones? Its probably more likely that there are teams that want Jones, just as a backup.