Why would the Jets have to wait until Jan? He is in the last year of a multi-year contract.
So, what is standard rental price? 1st + player? 1st + prospect? Those are the kind of prices that contenders, or would be contenders pay at the TD. No way I give up this year's first for him.
There is a rule that states a player in the expiring year of a deal isn't eligible to sign until January. No idea why it exists but it does.