My view is that Tannehill has many good qualities like throwing accuracy and athleticism, but also a couple of big deficiencies that to date held him back from elevating his QB status. Unfortunately, he has very poor awareness in the pocket and he is relatively slow at reading Defenses. As such, he needs a really great O-line to protect him and great running backs to balance the attack. I would not be surprised if when given an opportunity, that he can succeed in Tennessee. They have a couple of terrific RBs and a better O-line than we have in Miami.
I am not surprised that Ryan has departed with some class. I may be wrong, but I think that he is basically a very good guy by nature. Where some players are naughty boys off the field, Ryan isn't going to get into trouble. He married his college sweetheart, is raising a young family and he enjoys fishing. He's not going to be caught snorting cocaine or bashing up his missus or smashing his car at 3am in the morning.
Farewell Mr Tannehill and thank you for your service to the Dolphins. BTW - don't be surprised if his son Steele, turns out to be a decent QB in 18 odd years.
