Here are my perceptions, FWIW.
Demoff is exceptional. Writes good team friendly contracts while treating players and their agents fairly. Willing to pay fair market prices for players that S&F really like. Does a great job managing the cap. No palace intrigue crap ala Ziggy.
Snead appears to be well above average. Hard to say how much credit/blame to assign because of the complicated roles that he and Fisher play. He assembled a very good scouting dept after the 1st year. Little doubt that Snead and his scouts can find talent, even deep into the draft and certainly in UDFA. Might be handicapped a little bit by the requirement to only find "Fisher type" players. I think Snead is the best we've had since Klosterman, frankly. That's going back, what, maybe 35 years?
Fisher is a mixed bag. Outstanding when it comes to D matters. Got a great DC and gave him the reins. He's very strong on ST support, too. Very, very important. And I love that his players never quit on him. He's done very well with players that formerly had off field issues. On O matters? What can I say? One excuse after another. Poor track record with developing skill position O players. Still looking for WR's (yeah, plural), TE, and above all QB as he enters his FIFTH Ram season as HC. Turned in the worst O in the league last year. So let's just say that I have my doubts about Fisher's acumen when it comes to skill position O matters. It's the only thing really holding the team back anymore. If I'm Kroenke, this is Fisher's make it or break it season.
Other opinions may vary. Lol.