On your 1st point: ouch. Might be true.
On your 2nd point: probably true. It kinda feels like Gobert's value right now is higher than I ever remember since people are seeing what the Jazz are without him. Still, feels correct.
Gobert’s value isn’t the same as Mitchell’s we can agree to that the type of package we’d get for Mitchell would be easier to put a contender around Gobert vs around Mitchell with the package we get for Gobert.
Let’s say we did trade Gobert for Brown which is about best case scenario in a Rudy deal.
Conley/Mitchell/Brown is solid but we’d still be very bad defensively. We’d need to move Bogey for a defender. It’s hard to tell how good that team is but it definitely makes the playoffs.