Complex sentence: Many experts believe that the creation of the IPS is the single most important step in this process.6 All the other steps either lead into the IPS, or are directed by the IPS.
Split into simpler sentences: Many experts believe that the creation of the IPS is the single most important step in this process. Guidelines and Templates by Norman Boone and Linda Lubitz, FPA Press, 2004 All the other steps either lead into the IPS, or are directed by the IPS.