Will only ruin them if they were never meant to be a starter in the first place. Throughout these guys lives they hire coaches to get them ready for the NFL. By this time in their life they are either ready to face NFL or they aren't.
Letting rookies sit is a myth. If he can't handle the pressure he never will. The world weights the same this year as it will next year. If anything the pressure will get worse as Tyrod puts up ****ty numbers.
That part kind of destroyed your % part of the post. Looks like you are fine as long as you choose the right QB. And you aren't fine if you are a team like the Browns or Redskins.
No different then you saying sitting helped. Hell coaches try to sit the rookies but they end up getting shoved in ASAP b c sitting does nothing in reality.
The only way to get better is to actually play the game, learn the speed of the game.
Hopefully the Bills don't make that mistake again and pick a QB by your description will be nothing more then a career backup. In the NFL you either get it or you won't.
Florida... No blinkers, if there is a small curve in the highway everyone jams on their brakes.
NJ has the best drivers b/c they are aggressive as you need to be in this day and age.
Letting a QB sit doesnt do anything but keep them from experiencing what they need to so they can become better. The only thing that can destroy a QB's career is if they were never meant to be a NFL QB in the first place.