I was rushing sorry.Please do edit your second sentence. It doesn't compute. "nor any professionals they hire who truly care about health"?
There are doctors out there you can hire who will do whatever you want. IE, as a silly example, look at the plastic surgeons who turn woman into cat people. One could argue it is not ethical but they are willing to do it all the same.
I don't trust anyone Ross hires. He wants to win at all costs. NFL only cares about making as much money as possible while mitigating any controversies. If either hires a doctor to clear a player, I question the motivation behind the clearance. The only doctor I would trust would be one completely removed from football, the NFL, and especially the Dolphins. I assume one way or the other (assumption I know) either the NFL or the Dolphins paid for all these doctors so I do question their motivation.
On top of that, with the rich history of players developing CTE from repeated head trauma, and then looking at personal acquittances who have had head trauma, I personally do not think it ever resets. IMO, and I am far from a doctor (yes I know queue Ray laugh emoji ). Unfortunately I think Tua is permanently damaged goods.