Sure he gets decent stats. But he can't win games and that is all that matters.
Meanwhile you have plethora of rookie and other assorted young guys who are winning. Now. With whatever they got.
Great players elevate their team. Clearly this guy doesn't belong in that conversation.
And I just saw that Tannehill ranks 29th on ESPNs QBR which is a measure of his stats and success.
The supporters will say "he just needs...whatever." And you know he'll keep starting and probably will come back next year too. But ... Why?