I don't think the market is set for him. Brown forced his hand. Giants will not budge on demands of a star player who now looks behaved compared to AB.
The market for these skill guys is always a lot lower than everyone thinks, if you are looking at solely player performance. That $20m price tag (read Cap Hit) is a huge part of the deal. You're basically selling cap relief for a few gambles in the draft.
When someone's getting PAID in the NFL, it's hard to get a lot for them.
Except in very unique circumstances, I'd be shocked if a team gave up a high 1st rd pick for Beckham. Get a 20m per year
skill position superstar? Or have a chance at a 'lesser' stud cost controlled for 5 years? When you are talking about a team that is not currently set up to be a success and needs building blocks.
Now you could get a couple of late 1st rounders from a team ready to compete. But again, that's circumstance.
Pittsburgh's loss of leverage really came into play in that they had to lose the player AND eat $22m of dead money.