I agree that Seven really was a great addition. Possibly the greatest cast addition to any show I can remember. However, Kes had so much more to offer. Don't know why they had to get rid of her. Idiot should've tossed Kim. I don't care what poll had him in the top ten. How many women have ever STOPPED watching a show because some supposedly hot character left? Seriously? Perhaps if it was some kind of pivotal character, but even then, we're far less likely to stop watching and lord knows it's not as if he was gaining any viewers.
Are you kidding?
Law & Order
....and most recently "2 and a 1/2 Men's" future is in question without Charlie Sheen.
There are PLENTY of examples of shows that suffered ratings declines and issues due cast members leaving. It was one of the the main reason the creators of LOST couldn't kill off Jack, who was supposed to die first season.
There are more folks too consider other than women when thinking of getting rid of Garret Wang. Wang is the first Asian actor to be the the main cast of a Trek series. Having Wang in PEOPLE magazine not only has the potential to bring in women but the growing Asian American community as well. It's potentially more controversial to fire an ethnic actor on a show that's supposed to promote equality than it is to swap out one blonde hair, blue eyed actress for another.