I think Turner could improve slightly but I don't think he will have a big leap that we typically see from top picks over the course of their rookie contracts. I'm fairly confident he will never be an All Star and that his ceiling is a solid starter. His best chance to make a real impact is to focus as much on defense as possible because he does have All Defensive team potential if he works hard on that end but I just don't see anything from him that leads me to believe he will be better than Wall all around. If Wall was paired with Adelman or Carlisle I think this discussion would look very silly very quickly. But even if he never reaches his potential it would take an Arenas-esque fall from grace for Turner to end up as the better pro. Unlike Arenas though, Wall is a willing, gifted passer. That combined with his athleticism(Rose's level), and it's hard seeing him not getting better.

If this is the case how can you be so certain about Turner's future?

For a pg. Not for a sg or anyone else.

Wall isn't regressing at all. He had a terrible start this year but in the last 15-20 games he's shot much better whole cutting turnovers and increasing his scoring and assists..