Yeah it doesn't make much sense at all. I understand having to rest guys but wait until they are getting tired and struggling a bit, if they are hot keep them in
Hard to say Rodon and Sale were developed. They were pretty much both drafted as almost MLB ready. We never really draft a guy, develop him over a couple years to have success.
Problem is, baseball is a team game. You can't win with a few of the best players (See Angels), you have to have a complete roster which Hahn and company haven't been able to do and continue to neglect