Couple reasons. First off, it's beneficial to every starter in the rotation to get that extra day off. Over the course of the whole season, that may make the difference for a guy like Capuano who historically seems to wear down around September. Secondly, I think we may be able to expect more out of Vargas. Maybe a 4.25 - 4.50 ERA type pitcher, which is very good for a #5 starter. Anyway, I think Vargas is doing well enough not to be skipped right now, so I don't have a problem with them riding the hot hand. If he starts struggling, they've got options -- they can skip some of his starts, or promote Villanueva to the starting rotation. That's the luxury of having a guy in the bullpen (Villy) who can be an effective starter, too. We won't have to go back through last years Hendrickson/Eveland saga. In any event, Vargas won't get a tremendously long leash, obviously if he starts getting roughed up they may make some changes, but so far, it's going alright. Seems to have it today, at least so far in the 4th.