So,
this happened last March:
Quote:
It wasn't easy, but the Dolphins did manage to get under the cap by Wednesday's deadline and a big reason they were able to do that is because Ryan Tannehill was willing to restructure his contract. According to NFL.com, Tannehill created $11 million in salary-cap space by turning most of his $17.45 million base salary into a signing bonus. With the restructure, $16.7 million will be turned into a signing bonus and Tannehill will get the rest ($775,000) as his base salary in 2018.
The good news for the Dolphins is that they can now spread out the new bonus of $16.7 million over the life of Tannehill's contract, which means the team will taking a $5.57 million cap hit in 2018, 2019 and 2020, instead of taking the entire $16.7 million hit in 2018. The added $5.57 million will be tacked on to the cap hit that Tannehill's already scheduled to take up in all three years.
The one thing we can take away from this restructuring is that there's now a zero-percent chance that the Dolphins will be getting rid of Tannehill this season. Not that they were going to, but with the cap situation now, it would be nearly impossible.
If I understand it correctly, Tannehill's contract goes through 2020. The end of this season resets the salary cap problem for the Fins wrt the 2019 base salary, which jumps back up to $17.45M.
From what I read related to the OP, he's not willing to redo the contract again now in a situation where they're not keeping him, and that's why he's being cut instead of traded. So what is the difference to the Dolphins in cutting him vs trying to trade him for something of low but non-zero value?
I'm assuming cutting him makes him a free agent, but the Dolphins are still no the hook to pay him the rest of the contract.