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In page David Geffen:

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His colleagues in the mailroom included Elliot Roberts, who later became Geffen's partner in a management company. Geffen left William Morris to become a personnel manager and was immediately successful with Laura Nyro and Crosby, Stills and Nash.[2] When Geffen was engaged in the process of looking for a record deal for young Jackson Browne, Atlantic Records founder Ahmet Ertegün suggested that Geffen start his own record label.[3]