Oh do please stop this nasty Tess bashing.
There is nothing wrong with her, she is doing a good job, and at least all the judges get a chance to speak - unlike when Bruce was there and insisted on telling ridiculous long stories and 'jokes'.
She may not be perfect, but no one is. I think she does a very good job, and Claudia is the perfect foil, being a bit kooky and fun.
The show is about the dancing not the presenters - a mistake that Bruce made.
Zoe would definitely NOT be a good idea.