It's a great point, but somewhat moot as mentioned above, you take the top couple of performers off most any team and you change the dynamic appreciably...usually. And, as stated previously, it's more a question of who else emerges. With 9 man lineups and 5 day rotations, as well as normal hot and cold spells, baseball is a unique sport. Rosario, Buxton, Kepler, Polanco, Vargas, Berrios and Mejia are still so very young and developing that their ceilings are still a ways off. Mauer is starting to click along with Dozier. So yeah, its more about improvement than any regression from two pkayers, IMO.