q: what can a new board offer

A new Board will not be familiar with the running of the Company and the issues being dealt with.
They will need time to get up to speed and get to know the staff and managers.
There will be a certain cost too for the changeover. A new board might want to fire all the senior staff and bring in their own.
How do we know there will be a better outcome than with the existing board?
Is there anything they can offer that the existing Board cannot?

Also, I wonder what the numbers are. We could go through this exercise and still get rolled when numbers are counted. Loss of time and money.