There's a spark missing that was there in the original. Some think it is the absence of Jack Bauer. I think it's the writing and the plot. I never felt the tension the original had because the storytelling was disjointed and there was too much soap opera involved. Carter doesn't have much charisma. The way it was all wrapped up was not very satisfying. I suppose with Donovan in the fold, they had hoped to have another season. I can see why the powers that be decided against it.