Don't tell that to the Dolphins...😉
But correct - it's a whole different system. And for that matter, not only have the contractual issues changed but the importance of the position has done nothing but increase, so today you not only need to have good backup QB to keep hope alive if your #1 went down, you'd probably need an elite one since more often than not, a good team today revolves around not just good QB play, but elite QB play.