I like the idea better than flag because it involves lineman. It can also be a great for developing the footwork and assignments for all positions rather than lining up in spread and covering passes only. Some players are not ready to jump right into tackle and don't get the one on one coaching during the tackle season to help them improve in the areas needed. I think it may affect some tackle numbers in early grades but increase the numbers in 5th-7th with players that can step in and contribute right away. I also like that it is backed by the NFL a league that isn't going anywhere and introducing a version of football that should help grow the game.