The show could be improved, but it doesn't really need to be to stay alive.
Caroline needs to connect with the audience (in the studio and at home) better. Rosie made us feel like we were her friends. She shared self experiences (humorous and dramatic), home-made movies, etc. Caroline just...hosts. She needs to let loose or be let go!
"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