Not sure I understand that reasoning. Why would it be okay for Simmons and not Buxton? If anything, the fact that lower level prospect like Simmons can still be a very valuable MLB player based on his superior defense alone should mean a top notch prospect like Buxton, also with superior defense, would be an even better player since he was/is the better offensive player in the minors. Is you point that Simmons already reached his offensive potential in the minors and wasn't going to get any better so why not promote him while Buxton, though also a superior defender and better offensive player, can't be a MLB player yet because his offensive potential won't be able to be reached? I'm still fine with Buxton being down, though. I don't envision him being up before September at the earliest. Maybe not until around this time next year (Kris Bryant).