Is it though? May will provide clear evidence of his value in the win loss column, but if he just takes the ball every 5th day he’s providing intrinsic value by allowing extra rest to Drohan, Miz, Henderson, Harrison and Gasser none of whom have thrown more than even 150 innings as professionals.
Same deal to a lesser extent with Romero, the deeper the pen the fewer innings you need from the SP.
Frias and ‘Plug-n-Play’ Ragsdale is a steep price to pay, but it’s hard to quantify the value of not overtaxing their young SP