Then I'd say that BB doesnt have a great case in that regard. Ultimately, I don't think GM's care much about comparables in regards to RFA like Boes. JB probably has a fair, albeit team friendly, number on the table based on his own internal comparables to manage his cap going fwd. He knows Brock has no move other than sitting.
It's actually been well played by JB. Clearly he knew where BB's camp was sitting before the draft and UFA and he bought himself a whole lot of leverage to use in negotiations with Boes. They now have depth up front, other guys who can contribute and suddenly Bies sitting out isn't as impactful as it woukd have been last year.
Brock, really, has no move where he doesn't capitulate, imo. If he doesn't, he's a helluva chip to have in a deal.