Also... nobody MADE Bennett change the ending. He had called in Neil Simon to help doctor the book. The show was coming off too heavy-handed and dark, and he brought Simon in... who brought his wife Marsha Mason along to watch the show.
Simon added several bits of dialogue. Bobby's monologue was pumped up with his Simon-like jokes, Shelia's quips like "Can the ADULTS please smoke?" and her answer to what they wanted to be when they grew up (her response: "Young.") as well. Marsha was very vocal about not liking the ending, for the reasons already mentioned. If Bennett's point was to lighten up the mood of the show, then he couldn't leave the audience on such a downer with her not getting in. Not being able to "start over" and try again. He agreed with Marsha and made the change. (She's very proud of that mini-contribution to the show!)
Another major change that was put in during this time was having Cassie not come late to the audition and make an attention-getting arrival. It was decided that the audience should gradually get to know Cassie, as they get to know everyone else there, and they'd eventually come to find out that she'd had a prior relationship with Zach, was a show-stopping dancer, etc.
Something they obviously completely ignored when they did the film... and Cassie makes that awkward attention-grabbing entrance. They put the trashed mistakes back in!
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22