I think this is starting to become the ultimate “gift and curse” byproduct with the rising salary cap. Teams are going to become more and more reluctant as time passes to give out big money long term deals. They will also become more and more reluctant to see through the long term deals they DO agree to.
That, and the QBs are going to gobble up more and more of the cash as well.
Something to keep an eye on as the cap rises and teams are forced to pay out absurd amounts of cash to marginal players.
More and more of those marginal players are going to find themselves on the couch in favor of cheap rookies.