Offensive line AI Improvement or Defensive Blitz Fatigue

The offensive linemen need a major AI improvement on picking up the blitz. Blitz plays out the formation double mug are broke and manipulated to create instant pressure in a unrealistic motion. Defensive blitzes should fatigue players the same way offensive players fatigue from constant use at high speed .    Instead they are completely immune to fatigue and blitz and run wild all game even when blitzing every play of every drive. Defensive linemen are not in better shape then wide recievers  or running backs ! This is a major complaint in the community and allows 1% of users to grief 98% of the community.