The way to handle it is to sit down with Jamal and figure out a plan of action for both sides, whatever that may be. He's talking on social media because there is no plan in place, or if there is it hasn't been communicated to him, so he's agitating. Your thinking is binary and unsophisticated and not how a professional executive should be handling things.
It is literally Douglas's job to build the best roster possible and creating a situation in which your best player is behaving like this is poor. This doesn't happen at well run clubs; do you think that that's because no other player is unhappy or egotistical?
There's no one person in the wrong here. Adams is behaving poorly as a result of being stuck with a club that has a losing culture that starts from the ownership and is perpetuated by the head coach, and the front office is failing to get control of it.
The pandemic has torched any plans the Jets had, because everything (including the season, the salary cap etc) is up in the air. I know you don't want to hear that (because of your opinions on this pandemic), but it's the truth. It's nice that the NFL is saying they're on schedule to play, but i'll believe it when i see it. In regards to Adams, he needs to read the room a little better, the situation has changed...what he was told in January and around draft time, may have changed over the last 2 months. The Jets are well within their right to do that. Remember, Adams isn't in a contract year, and has zero leverage.
Joe Douglas has gone on record saying Adams was gonna be made a Jet for life, obviously not right away most likely because the world isn't a good place healthwise.
The kid has been a warrior for this team, but he should show a little patience...and start acting like the leader he makes himself out to be.
Joe Douglas shouldn't have to hold Adams' hand through this...he's a grown man. There's nothing to smooth over other than a player acting like an entitled bitch literally at the worst possible time