NFL preseason: Pointless or essential?

NFL preseason: Pointless or essential? Did you watch Patriots Preseason Game 3? Drake Maye's lack of snaps sparks debate. Is it all about avoiding injury or just a new normal? Could Kyle Williams have a breakout season?
Ashton Grant calling the plays?! Mike Vrabel explains why Grant, a promising young offensive coach, was calling plays over OC Josh McDaniels. Could Grant take over as OC for Patriots, after McDaniels?