Regardless of those well-laid plans, Miami was going to cut ties with Tannehill just to get his cap hit off the books and start anew at the quarterback position.
Tannehill will become a well-accomplished backup for Marcus Mariota in Tennessee.
The Dolphins now face a new era without a clear answer at quarterback. This season Tannehill will count $18.4 against the Miami cap, but he will not count anything against the 2020 cap.
Barr backs out of Jets deal to stay with Vikings
He was the second-best free agent linebacker on NFL .com's list of the 101 best free agents, behind only Minnesota's Barr. The one big advantage the Vikings likely had in their negotiations is the fact that Barr is familiar with their defense.
The eighth pick of the 2012 draft, Tannehill struggled to live up to the potential he exhibited at Texas A&M.
Gabbert threw four touchdowns and four interceptions during the season as well. Tannehill has missed 25 games over his last three seasons due to a variety of injuries including a right shoulder capsule injury that cost him five games in 2018.
And, spoiler alert, the Dolphins do not care one iota about the $5M they're sending to Tennessee.
Miami will have all seven of its own draft picks.