Complex sentence: Members of the band included Sam Cooper, John Luraschi, Ricky DeSarno and Bob Alfano, who had played keyboards with two early Springsteen bands, The Castiles and Earth.
Split into simpler sentences: Members of the band included Sam Cooper, John Luraschi, Ricky DeSarno and Bob Alfano. Alfano had played keyboards with two early Springsteen bands, The Castiles and Earth.