I think this move goes far beyond Sano's ability to hit a breaking ball. This is a move to get him away from the bright lights, big cities, third-deck stadiums, & all the pressure that comes with them. This is about sending him back to square one. We've all seen the quotes about how Sano has to be 'More of a professional,' 'Needs to figure it out,' etc. This move is about those things, as much, if not more, than it is about hitting breaking balls. And, weight for it... this is about trying to get Sano to realize he is way overweight and needs to make lifestyle changes if he wants to get the most out of his professional career. Hopefully it's not too late & hopefully Sano is willing to put in the work & make the necessary lifestyle changes. Until those things happen, this is just a huge waist of God-given talent.