Yeah that's a fair point. If you look at individual selections, the analysis will turn out a some funny results from time to time. But most of the time I think it gets the right idea at least.

The analysis compares players against those taken them after. The 4 players taken after Vesely were: Bismack Biyombo, Brandon Knight, Kemba Walker, and Jimmer Fredette. The 4 taken after Cole were: Cory Joseph, Jimmy Butler, Bojan Bogdanovic, and Justin Harper. Oddly enough, the three players taken right after Cole were quite good, which is why this pick is ranked so poorly.