I disagree: RB actually needed an upgrade too! They paid Rham pretty well (not top 10, but not terrible), but with his injury history and so much RB1 movement this offseason, it seems wild they did not improve the 2nd back. In addition, 3rd down hands back hasn't been great, and I don't see Kevin Harris improving sufficiently to fill that role in year 3 *. They still didn't get an FB, and I'll will harp on this til the cows come home - it's a really important part of a West coast scheme (see Juszczyk, Kyle).The idea that the only problem with last years Patriots team was the QB doesn't sync up with how bad the roster was, and probably is still to an extent.
Mac was the main culprit, but every position group on offense besides RB needed an upgrade and it's incredibly difficult to achieve that in a single off season.
* Kevin Harris has apparently been cut, along with Jennings: https://www.bostonherald.com/2024/08/27/patriots-waiving-two-preseason-standout-running-backs/