I think the first few posters nailed it pretty well.
One issue is lack of accountability. Mario doesn't seem to intervene in any situation during the season. He hires people and let's them do whatever the **** the want.
A good head coach should be keeping his staff within the correct lane. Mario should have given Guidry course corrections throughout the season, but it's obvious that that didn't occur.
I dont think the defensive staff meshes well together. Mario hires yes-men who won't challenge him on things, instead of innovative guys who teach to the system.
I also wonder if the kids even go to practice sometimes. Damari Browns first rep coming back from injury a few weeks ago, he did a full 360 ballet spin on the line. Is that taught? Against ISU, #15 or #19 is literally running out of bounds trying to keep up with his WR. Is that taught?
Mario is famous for being a top recruiter. I really don't believe this at all. He gets highly rated players. Guys who are supposed "4 stars" but rarely pan out to being even G5 guys. He gets guys that the big schools passed on bc they did their homework.
As a result of him trying to keep the SFL highschool pipelines loyal, he sacrifices any semblance of intelligence/football IQ on his roster. There isnt any good fundamental ball down here. Its blitz the QB, run go routes, and 7 on 7. Kids like Bissainthe don't know where to line up after being in the program for 3 years. There's probably a huge chunk of the roster that's actually illiterate. Look at how many kids aren't ever put in front of a microphone or so interviews.
There's a lot of small issues that compound into bigger problems.
Mario is a clueless OL.... lacks the football IQ to correct any coach