Complex sentence: Chronic constraints with other projects and increasing uneasiness between the producers and Kevin Yegher led to friendly departure of the director and the studio brought Rand Ravich (writer) and Joe Chappelle in to write new scenes and do two more weeks of shooting.
Split into simpler sentences: Chronic constraints with other projects and increasing uneasiness between the producers and Yagher led to the departure of the director. The studio brought in Rand Ravich and Joe Chappelle to write new scenes and do two more weeks of shooting.