Extremely brave of Levy. Both appointments are out of left field, they buy zero good will with fans who really do look like they are starting to revolt for the first time in his tenure.
Not only do they have to work, they have to show results early, otherwise the atmosphere will turn toxic really fast, and it's really hard to turn it around from there. And if that happens, the Levy out stuff would be amplified to Mike Ashley levels.
If we are going for a rebuild. They wont show results early. The fans will have to get used to the fact next season is a transitional one. Not saying it's going to be terrible. But the eye is not on next season to get back into the cl.
I might be wrong but i expect a lot of young players coming in most of us probably wont have heard of. The fans will need to give them support.