it's hard to really evaluate and say "well hey look what baez is doing to AA, he's better than sano/lindor/etc" because he's had fewer than 200 plate appearances, and he's always been pretty streaky. it's quite possible (likely?) that he's just happening to spend some time in AA when he's on an insane hot streak. what i do know is that i've always read that if he starts to get his game under control, then he'd take off really quickly. well, the walk rate is up, the k rate is falling, the power is up, and the errors are down. so maybe it's just a hot month or two, but it also quite possibly could be the switch flipping for a guy with top-notch physical talent.