Hinkie cited pace and 3-point shooting as traits of recently successful teams in the NBA, but did very little towards finding role players who could contribute to those team traits. He let Ish Smith go; when the Sixers reacquired him, their offense got much better.
I don't think he's the right guy for the next phase (roster building). Also seems to be a mixed bag on talent assessment.
The thing is that it's hard to find guys who can shoot and play with pace who are also young enough to fit with the timeline of that team (i.e. long long term). Ish Smith is already 27.
I agree that Hinkie didn't properly value the benefit of keeping a guy like Ish Smith anyway, despite the fact that he's not a long term answer, because it helps the other guys on the floor develop.
I'd say Hollis Thompson, Robert Covington, and Jerami Grant all appear to be decent reserve pieces for a team that wants to play fast and take a lot of outside shots. Stauskas could have some value in that regard, as well.
By no means was Hinkie perfect. I just think he did enough to get the benefit of the doubt to see his vision through. After all, the Sixers hired a guy who had never had a GM position before. They had to expect that he would need some time to develop, just as players do.