That's maybe how it used to be. Rookie WR are taking the feature roll all over the league now.
https://www.cbssports.com/nfl/news/ranking-rookie-wide-receivers-by-who-will-be-most-productive-in-2023-chargers-quentin-johnston-tops-list/
The Steelers will think that they have the next Roethlisberger in Russ. For the first five games he will lead all quarterbacks in completion yards and then it'll all fall apart
It's a cat and mouse game. New methods of cheating the system lead to new methods of testing which lead to new methods for cheating which lead to new methods of testing…and on and on. In the end they catch up to it.
This is all photo op staged BS. Their shirts are in perfect just out of the wash condition with no sweat or sweat rings. Not even a drop of sweat on their faces. Glam shots.