Nice article by Brad Spielberger of PFF detailing key metrics related to the salary cap of each team. I think he does a three year analysis because, a large part of analysists believe that you have a 3 year window to compete before resetting your cap and starting again, of course, you can try band-aids like the Saints/Eagles/Packers have been attempting.
I think our three year window begins next year (unless we move on for Goff for a rookie QB), then it would begin in 2024.