I think we can't complain about Smarts production. His scouting report badically said: winner. And I think thats exactly what he has done, imo he created the winning mentality which made this team exceed expectations and return to the playoffs in the just second year of the rebuild. I couldn't care less about those rankings, because they don't show which impact he has on the other players of this team.
Of course he can get better, and I think he will. But I think he already has the impact of an fringe all star even if the stats don't show it.