If you look at the links on the page you linked, you'll see that Mike Florio has AJ as the #4 FA QB and says he will get paid a lot and start next year. I realize it's his opinion, but as I noted in a previous post, AJ is more highly thought of by the pundits than you seem to realize. In 4 of the 5 articles I've seen, AJ is ranked from 4-7 among the FA QBs. Only Brees and Cousins are consistently ranked above him. Some of these outlets reflect to some meaningful degree, the thinking within the NFL regarding AJ. NBC/ProFootballTalk/Mike Florio are respectable, not infallible, but respectable.
As far as the Browns, it's all about leadership. Idk if the new GM can overcome the bumpkin from UT, or if he is even a good GM, but he is in a position to possibly right the ship. "The Browns are estimated to have a whopping $110 million in 2018 salary cap space, meaning they're first in the league by more than $30 million." They have the 1, 4, 33, 35, 64, 65 picks in this years draft. Just a decent GM can clean up in free agency and the draft, a good one can completely change the course of the franchise. They also have Joe Thomas and Josh Gordon. They had the #14 total D - OK. That's with little help from the O.