This.
Even when we had Verlander and Scherzer the back of the rotation was never as solid as this staff, and we know if there was one thing Dombrowski didn't commit to, it was relief pitching. DD's plan was always to find one soon to be broken down closer and hope he had a good year left and add him to the closet of misfit toys that was the rest of the pen.
2013s starting staff was maybe the best, but if you consider it was a bad year for Verlander and Porcello was not that great either it still didn't turn out to be strong 1-5