John Huber, a retired partner from Latham and Watkins, one of the premier auditor defense firms, was also mentioned in earlier reports and by sources instead of Doty until the last day before the announcement.

FORBES: SEC Stacks The Deck Against Investors At PCAOB

In "Long Hot Summer Days, " a cover of a tune by the late John Hartford, Watkins is supported by bass, drums, electric guitar, Dobro and harmony vocals, but her fiddling mastery and perfectly pitched voice are the real stars.

NPR: Sara Watkins: Summertime Blues

Now striking out on her own with a solo album produced by Led Zeppelin's John Paul Jones, Watkins is putting her own talents on display, with just the right amount of backup.

NPR: Sara Watkins: Summertime Blues