...And then there was a production where the casting breakdown for the audition notice was put together by someone in the office who didn't really "know" the show. Consequently, when the vocal breakdown and ranges were listed, they were almost too literal since the all the women in the show had to sing within a certain range of notes, however, not all of those parts "lived" within the same range of notes. And since the show was cast without a musical director in the room, well...
-And, yes, that does happen from time to time too. More often than anyone would ever admit to.