Having a fast pass looking for both backs or forwards to run onto the ball isn't really vision - vision is playing whats in front on you looking to use the best tactic in a situation, Smith needs to do more than pass & box kick, also vary his kicking game, make darting runs around the edges of rucks etc, keep the defence guessing.
Aaron Smith is never going to be able to handle the physical game like TJ can, he's a much bigger halfback at 6' & about 94kg.
Only have the time to go on one rugby forum, what do the blokes on the other rugby sites say about how poorly we deal with the rushing defence ? this has been an ongoing problem since Hansen, that was highlighted in the Lions series - in reality you've only got two ways to counter it, you either have good momentum going forward in phase play, giving your backs top front foot ball, so they have good options on attack... it's when you get slow ball from the forwards the tactics have to change, as the backs are going to have a lot less space & time to create, only other option in that situation is smart varied kicking behind them, as mentioned, just using the up & under to try & break down a flat defence is just a real lack of thinking.