by William RuhlmannMarathon marked the addition of keyboard player Alan Pasqua and singer Greg Walker's replacement by singer\u002Fguitarist Alex Ligertwood in the Santana lineup. Otherwise, the album was notable for consisting entirely of band-written material, although those songs were in the established R&B\u002Frock style evolved on albums like Amigos, Festival, and Inner Secrets. The formula seemed to be wearing thin by now, however, as, even with a Top 40 hit in You Know That I Love You (#35), Marathon became the first Santana album to fall below the 500,000-sales mark necessary for gold record certification. (It has since made the mark.)