There are managers out there that have some tactical nous and under whom we would have a better chance than we do now. The run in we have is horrendous and it's by no means even likely, let alone certain, that a good manager will be able to save us, but Frank simply doesn't have the experience or the mindset to do it. Look at the formations, the defending, the game management. I know we make too many individual mistakes, and the manager can't be blamed directly for those, but his management isn't helping. It's the same things that got him sacked at Chelsea.
The question is probably not whether another manager could save us, but who would be mad enough to take on the job at this point.