But with a U.S. college tour to promote "The Notorious Byrd Brothers" looming, a more immediate concern was the recruitment of new band members. David Crosby and Michael Clarke had been dismissed from the band in late 1967, leaving Roger McGuinn as "de facto" leader of the Byrds, along with Chris Hillman, the only other remaining member of the band. To address this problem, McGuinn hired Hillman's cousin, Kevin Kelley (formerly a member of the Rising Sons), as the band's new drummer, and it was this three-piece line-up, with McGuinn on guitar and Hillman on bass, that embarked on the early 1968 college tour. It soon became apparent, however, that the Byrds were having difficulty in performing their studio material live as a trio, and so it was decided that a fourth member was required. McGuinn, with an eye still on his envisaged American music concept album, felt that a pianist with a jazz background would be ideal for the group.