And yet, here we are with A Cooper on a reasonable deal - unable to hold the Bills hostage. The point is, the Bills do have some control over the contracts of the players they get.
Unfortunately the Bills need a top tier WR for next year. It's hard to get a non-diva top tier WR, so the Bills need to be careful. The D Adams/ T Hill/ S Diggs of the world need to be avoided. Maybe A Cooper if he shows a little more, or a big move for DK Metcalf.