From the AP story on CTV.ca:

Katie Couric says the move to CBS would have been less appealing if she had known she'd be doing the more traditional CBS Evening News broadcast that she anchors now.

“People are very unforgiving and very resistant to change,” Couric said in an interview with New York magazine. “The biggest mistake we made is we tried new things.”

Couric's move to CBS has been a bust so far. The evening newscast's ratings are deep in third place, and CBS has rolled back some of the changes it made last fall to shake up the format. Couric conducts fewer interviews, an outside opinion segment was scrapped and the anchor admits she's even dressing down a little to give her critics less ammunition.