From the article: Yes, the article points out that if you shrink the population to guys whom you already know had long, successful MLB careers, then MLB OPS and MiLB K rate are positively indicated. That means little for Baez, who does not go into that category yet. That category is very small and (as the article points out)was dominated by high BB/high K guys such as Larry Walker (12% BBs as a 20-year-old in AA), Joey Votto (15.9% BB rate as a 20-year-old across A and A+) and Ryan Howard (minor league debut at 21, 14.8% BB/rate in A-). Baez just doesn't fit that profile at all. No one's saying he's a for-sure bust. I'm saying if isn't a bust, it's almost certainly because he gets enough value from his power and defensive position to make up for an adequate-at-best OBP.