So this is some corporate speak buzzword BS. There is no process to being a DM. You want to know the big keys here you go:
1. Keep the game moving.
2. Keep the players engaged
3. Make sure everyone at your table is having fun.
Done! Thats the process. Other than that keep throwing crap at the wall till ya find something that sticks.
Yeah everyone is going to fail. There is no way to make it that they won't fail, or won't fail a whole bunch. Failure is how we learn anything and anything worth becoming good at is something you will be terrible at for a while. Jordan wasn't dunking when he first grabbed a basketball, he sucked for a while and practiced till he was the best, and then he kept practicing. Being a good DM is the same kind of thing. You have to keep practicing to get good at it. It is basically a form of performance art, to expect people to be good without a ton of failure is unreasonable.