Then I came across this:
Thomson: There were things that weren’t finished. The whole performance-art piece [that the character of Maureen does] was unwritten when rehearsals started because Jonathan wanted to improvise it with Idina. Which he did, and I was at that rehearsal. Idina was very inexperienced, and she should get more credit for her improvising.
Menzel: Michael told me that Maureen “is a woman who has studied performance artists like Laurie Anderson and Diamanda Galas but has yet to find her own voice, so she mimics them.” That was enlightening for [her approach to the character].