This is the ability that sets Tannehillapart from the others in his draft class IMHO. He is the most accurate thrower of the ball. He repeatedly threads the needle and fits balls into tight windows.
His completion percentages and INT numbers do not fully reflect it yet, but they will over the course of his career. He is the mmost precise thrower among all the young QB's and he can thread the needle in a truly elite class with Rodgers and Brady, which over time will see him rise to the top eschelon of NFL QB's. IMHO, he is a more precise thrower than Luck, Wilson, RGIII, Dalton, Newton, Kaepernick and any other young QB in the last few years I may have missed. Tannehill truly has pin-point accuracy delivering the football.
He lacks experience, he hasn't become a great decision maker yet (but he is a student of the game, very intelligent, and a tireless worker, so he will eventually get there), but he will be.
He definitely needs more reps to improve his vision, and more time with his receivers, and better technique holding onto the ball, but his level of precision is special and can not be taught.
I'm excited about Tannehill's development.