She couldn't make it any worse.
Actually I think she would be quite good for Corrie as her strength lay in character-based stuff, something Corrie always excelled at and is now lacking, what she's not good at is the big stories but then Corrie had three years of stunts and sensationalism under Collinson while there's been a heap of more down to earth but poorly executed big stories under SB, so I'd quite like to see things go back to basics for a while.
A user on YouTube has uploaded several years worth of classic episodes and sometimes months and months would go by without a big event happening. This is something Corrie could get away with.