Well yes, if you think that just changing this staff gets this team back to Super Bowl winning way,, in your words, then yes you are suffering from what is being called...
CSCDS.. defined as Coaching Staff Change Delusional Syndrome.
If you just like change for the sake of change, then you are buying exactly what Jerry is trying to sell you,, put all the expectations and blame on MM,, because Jerry hired that man.
Jerry hired an excuse and sold it to the fan base, MM will fix everything and if he doesn't, don't come to me asking stupid questions, blame MM.
Jerry invested in JG for whatever reason for that period of time, which in football linguistics is like 3 decades at least, that's a lot of time people.
Humans really don't live that long, so Jerry essentially wasted about a 3rd of our Cowboy fanship life expectancy,, just trying to bring this into perspective.
MM and his staff will make a difference, but the amount of difference will be at Stephen Jones expense, and I don't think Jerry is ready to relegate his bloodline ties to this franchise.