The OP's post sounds like he stole some of my points from another previous thread where I had mentioned about having a lot of precedent for teams winning with a great wing/big man but not so much for teams with a great PG/PF. Jazz seem stuck to their 1-4 punch. However, I still feel that getting a legit MAX big guy alongside Deron would make us a contender. You put, say Duncan in his prime, next to Deron and you are telling me we are'nt contenders? I think the league rules just favor having a good wing now more than ever. No hand checks and all that . So you have a 6-6, or 6-7 guy who can do it all and it makes it much easier in the clutch. A PG is still 6-2 or 6-3 at the most(with rare exceptions like Tyreke Evans) and gets defended by a bigger guy in the playoffs making it difficult.
Isaiah Thomas seems to be the only exception in the last 25 yrs.
But still give Deron a Duncan or KG in their prime and we will be going to the Finals