One dimensional? Explain that. She nailed the Heart song as well as Chaka Khan's I'm Every Woman. Few other great performances as well. Her bad performances were not even all that bad and especially so when compared to Kat.
Would "generic dime-a-dozen gospel singer" serve as a better description? She left because she flubbed two weeks in a row.
Not to mention "Don't You Worry 'Bout A Thing" for Stevie Wonder week, and "I Don't Hurt Anymore" for the 50's themed week. One dimensional? I DON'T think so.
I agree kev, Pickler did overstay her welcome.