Norah O'Donnell is going back to 'CBS Mornings.' Career experts say boomerangs come with baggage.

Norah O'Donnell is returning to 'CBS Mornings' after seven years as anchor of 'CBS Evening News.' Career experts note that returning to a former job can be challenging and advise treating it as a new position. O'Donnell is expected to rejoin cohosts Gayle King and Nate Burleson by September 8.

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