Chuck Lorre has revisited Anna Faris' departure from Mom, writing that the reasons behind her exit were no mystery to those who worked on the sitcom. In his memoir, Sitcom, the television creator reflects on his initial reluctance to cast Faris and says her departure appeared to confirm his earlier reservations.
Lorre's comments offer his personal assessment of the casting decision and Faris' exit. However, the passage reported from his memoir does not identify a specific incident or fully explain the circumstances to which he was referring.