I think all those teams take a step back.
Yes it seems Dallas may well take a step back as well.
Steelers are not as good as their record showed they were. They were lucky to make the playoffs the past few years or so.
Maybe Baltimore stays the same, but I still say they go and Lamar goes most of the time. To me he is or can be too inconsistent a good part of the time.
Edit:
I just looked. Just in FA, I did not look at the draft yet.
Nor did I really compare if what they lost vs. what they gained, other than a quick look. Seems all lost better players than gained.
Of course the holds true for many successful teams.
SF lost 8 players, gained 5
Detroit, lost 3 gained 4
Pittsburgh lost 3 gained 3
Cleveland lost 7 gain 3
Baltimore lost 12 gamine 2, which the biggest of course was Henry. 12 players lost in FA, and signed 2, and our fans complain about replacing a few starters.
12 is a lot of players to lose in FA. Last year SF lost 9 players, this year 8. Their depth took a hit.