Dumping the coach isn't going to make any difference longer term.

https://www.cbssports.com/nfl/news/raiders-fire-head-coach-josh-mcdaniels-general-manager-dave-ziegler-in-surprising-late-night-move/

This was probably the right choice.

That said -- hot take -- the Raiders are gonna have problems that no coach can fix for the foreseeable future.

They're in Vegas.

By the simple choice of moving the team, they'll forever have the problem of drafting young men, giving them a bunch of money, and dumping them in Sin City.