Fassell was a mess as an interim coach, wildly popular with players (see comparison to Belicheck), loves practical jokes (like riding surf boards into meetings) .... and I'm going to say something that may make your head explode, but so be it:
Some just have the gift of intuition, of observation, of vibe. You may not like that (based on your board personality...a guess), but it's true.
Fassell ain't strict. Neither is Wade. Doesn't mean they are bad coaches, because they aren't, but based on observation and inside reporting, McVay wants a different dynamic. And McVay is smart in pursuing it.
I do know the team is soft. I watch and rewatch their games. They are soft. I'm not shocked they got rolled by Baltimore, Dallas and Tampa. All of those teams have very tough dudes on them, particularly the line of scrimmage.