While I would have just kept him in the rotation the whole time, I still think that either move on May was defensible - moving him to the pen when they did and keeping him there, or deciding to move him back to the rotation when they did and keeping him there. Doing a halfway move to cripple the bullpen while the team was clinging to it's playoff life was an amazing decision. Saying it cost four games is a pretty big stretch, but two sounds about right. They'd be a half game out of the WC right now and also know if Berrios might be able to help the rotation down the stretch. And maybe even have been able to send Achter back down and actually call up another bat to provide Hunter with some needed relief. I generally think people have massively overreacted to much of what Ryan has (or hasn't) done this season, but this was an inexplicable blunder at a crucial time and it's going to bury the team. But luckily it won't bury them enough that they'll cut ties with the 2-3 vets they should and let the kids roll. At least not for a couple more weeks.