I think
@SameSongNDance is about right with the o/u for Tyrod being 500 attempts. I would cap him at 530 tops. I also agree that Tyrod is more likely than many (most?) QBs to tuck and run (although there is a declining trend), who wouldn't with his running ability? And I also agree that with that volume none of the Browns WRs are likely to exceed their draft position.
However I also think that Tyrod throws a great deep ball and looks like a great match with Gordon for that reason. If any WR is going to meet or exceed expectations in Cleveland it's gonna be Gordon. He's like a gigantic Tyreek Hill, not as fast of course but if you give him even a milimeter opening he'll blow by you, go over or through you on the way to the end zone.