Who is the ace right now in the Mariners rotation?

Dave and Bob discuss the recent outings from Luis Castillo and debate who the "ace" among the Mariners starters is right now. The guys also debate how they would currently re-order 1-5 in the Mariners rotation.
Listen to The Wyman & Bob Show weekdays from 2pm - 7pm on Seattle Sports 710 AM or on-demand wherever you listen to podcasts.
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