Tyrod was also coached, first by Rex, and also by Roman, and then Lynn, to not turn the ball over. Mostly by Rex who strongly believed that defense, run game, no turnovers, in that order, won football games. Well we all know Rex miscalculated a lot. But the point is, his coaches totally stressed don't throw interceptions. We can win if we don't turn it over. So a lot of Tyrod's hesitation was that he didn't force throws, he wouldn't throw guys open because they were covered and he was coached not to turn the ball over. It's another reason why he ran so quickly and so much.
If Rex and his OC's didn't stress that so much, he would have passed for a lot more yards, he would have thrown over the middle a lot more, and he would have thrown a lot more interceptions.