Complex sentence: One person taken out of the Rockestra Supergroup was Jeff Beck, after being asked to join by McCartney, Beck wanted to be able to have veto power over his own guitar parts, subsequently, McCartney withdrew his invitation.
Split into simpler sentences: One person taken out of the Rockestra Supergroup was Jeff Beck. After being asked to join by McCartney, Beck wanted to be able to have veto power over his own guitar parts, subsequently, McCartney withdrew his invitation.