Complex sentence: Gary Allan talked to "The Boot" writer Vernell Hackett, and Allan commented on during the time making this album was one of transition for his label and how he worked with producer in a competitive effort to make this album better.
Split into simpler sentences: Gary Allan talked to "The Boot" writer Vernell Hackett, and Allan commented on the time during making of this album was one of transition for his label. In addition, Allan noted how he worked with producers in a competitive effort to make this album better.