No, Tebow hasn’t shown good ability on pre-snap reads or pst snap reads that he needs to make it to be a minimally effective passer. Beyond that, his mecahnics are atrocious, his footwork is poor, his throwing motion is awkward, and the time between his decision and his release is far too long, largely related to his throwing motion. Other than that, he’s a great Quarterback.
Trent Dilfer has become a fairly well recognized authority on what successful NFL QBs do as far as their overall throwing mechanics. He says the Tebow mechanics are really far off.
I don’t know about reading defenses my guess is experience is the best remedy, but I am of the opinion that technique can be corrected and improved, though it takes time, tremendous effort, and a lot of coaching.
I can’t really point out where Tebow’s mechanics have improved from one season to the next. I suspect that this may have been the issue that the Jets complained about his practice habits, though I have no proof and the Jets are a real mess.
— but Tebot was great to watch at UF.