The average NFL career is only 2.66 years, so the typical stay with one team is less than that:
https://www.si.com/nfl/2016/03/01/nf...-data-analysis
I don't need stats to tell me that the turnover in NFL is constant and absurd. All those articles last fall about Jared Cook. Starters may last for a contract period. I can't even keep up with the names of the players on the defensive front seven. It's a revolving door. How many running backs have been in and out the past 5 years?
It takes 3-4 seasons to develop an attachment to a player.
The Packer "team" each year is like a fantasy football team chosen by TT. That's an exaggeration, but the constant turnover to younger, cheaper guys is like an endless mill.