Have to say, Wolf is doing extremely well so far in FA. Lot of people expected them to get Brissett and they did. He's also done an awesome job keeping quite a few of our key guys (Henry, Onwenu, Bourne, etc.). Yes ideally we want some external upgrades too but there's still time, and obviously the draft. I think they still have over 65M in cap space at the moment. Tyron Smith would be an awesome next get.
Call me a pessimist but I'm pretty sure if Belichick was still GM, he would have let Onwenu walk, a few others as well while signing a bunch of mediocre special teamers. I think it's kinda telling that they also released Parker as well as dumped Chris Board who was a "core special team guy" that BB signed last offseason (and did practically nothing btw)