From what I've seen, Milton and the playcallers are either unwilling or unable to throw vertically down the field. LSU fans feel your pain on that, and it can be mitigated, but you have to be built for it, and you also have to live with it when you run up on a very talented team that will suffocate you and beat you because of it (see: Alabama vs. LSU many times, many years).
Tennessee does not look built that way, they clearly still want to run last year's offense, but the kid's gonna have to at least try to take shots for that to be a possibility.