He once mentioned a couple of years ago why football as a brand, in particular in the NFL, was struggling.
Rule changes for defensive behavior essentially made it too easy for offenses and offenses equally don't take advantage of it because kids aren't being developed in college anymore. QBs don't learn proper technique, game prep and understand of coverages, leverages and space, offensive tackles don't receive proper technique anymore because spread systems allow them to basically freelance a ton etc etc etc
Alex Smiths response was "you played in the easiest division, you have no right to talk about this" and guess where people applauded.
Brady turned out to be right and all that Alex Smith is known for is manage to 1. not win a title with the 49ers who were so loaded that it was a joke and 2. became the goldstandard for average QB play.