Look, I don't know you -- perhaps you are a well-intentioned, experienced, and possibly talented educator/director -- but I have SO many issues with your post.
For starters, why do you put in the minute effort to type out "in business..... Trying" when you could have taken a split-second longer to type out the entire title fully? OR taken a split-second briefer and cut off at "How To Succeed..."?
Secondly and more importantly, do you know the show? If you are familiar with the show, you would know that the ensemble is a LARGE part of the show. They have a lot to do, and MANY of the dance numbers can be show-stoppers. It's a PERFECT show for an educational/community theatre venue.
If you're not familiar with the show then I hope you have a Netflix account because the film version is available for streaming.
"The Spectacle has, indeed, an emotional attraction of its own, but, of all the parts, it is the least artistic, and connected least with the art of poetry. For the power of Tragedy, we may be sure, is felt even apart from representation and actors. Besides, the production of spectacular effects depends more on the art of the stage machinist than on that of the poet."
--Aristotle