Concur.
I believe the FO made a conscious choice to attempt to get quality starter numbers by reducing their exposure.
I think they decided we don't have and can't afford front line starting pitching, but we can get something close to it, just not for as long. To a certain extent, it's been reasonably effective.
Of course, I also believe they didn't think through the other part of that plan very well. If you're taking innings away from the starters, somebody still has to pitch them.