Smart's offensive numbers were in the middle of the 16 primary starting PGs in the playoffs. In particular, his A/TO ratio of 2.37 was 9th best, which isn't bad. However, his A/TO ratio against the GSW was 1.58, which would have placed him 15th if that had been the one series he played in. Tatum had more assists and a better A/TO ratio in the series, which isn't a good sign. For the other three series, Smart's A/TO ratio was 2.82, which would have placed him 5th. IOW, he had a bad series on the biggest stage. But he wasn't the only one that had a bad series...
Tatum, White, and Pritchard were all brutal as well and Theis was unplayable. I think the numbers have shown Smart to be an offensively below-average starting PG who's elite defensively and who rebounds well for his position. The difficulty comes in how inconsistent he is on the offensive side, which in a playoff series can screw you royally. Nonetheless, we had 5 guys who didn't play well led by our #1 star, our PG, and 3 rotation players.
Finally, I'd like to see a better PG, but I have trouble seeing how that happens.