Complex sentence: Other reasons he cited were frequent rewrites of his material, and the overall corporate culture that was more prevalent now that both DC and Marvel were owned by large media conglomerates, and also referred to Scott Clark's artwork on "Grifter" as "crap".
Split into simpler sentences: Other reasons he cited were frequent rewrites of his material, and the overall corporate culture that was more prevalent now that both DC and Marvel were owned by large media conglomerates. Liefeld also referred to Scott Clark's artwork on "Grifter" as "crap".