There's always going to be one show where it's a panic show. No one knows their lines, the choreography is a disaster, or whatever problems that plague your production.
One of the mistakes people make so often is jump right up and point fingers. Many times it's at the director, which isn't fair. How is it the director's fault if you don't remember the jazz square during the second verse or you skip an important line in your monologue? Take some initiative and learn your stuff people! The blame game doesn't help you remember your lines so just cut it out.
It's also easy to blame other cast members. And maybe you're right, they did need to know this two weeks ago. But walking around backstage ranting to others how Patti doesn't know her stuff (insert other word of choice, if you so choose). Instead of pulling a Diva Moment offer to help them. Say you'd be glad to run lines with them when your both not on stage. This way you make sure they can get their stuff done and you don't look like a Diva.
If there is bashing going on, my policy (which i think is the best one) is just do what you're supposed to do. You know what's right and wrong and you know that concentrating on the show is the most important thing.
If you keep your focus then putting together a good production should never be an issue.
