Hell, you can come up with all sorts of reasons a person fails, but that doesn't mean they apply to a particular person. In other words, you dreaming it up doesn't make it true. If you are going to be reasonable you stick with things we know - like he hasn't accomplished what he was hired to - and get rid of all the nonsense like laziness, and intentionally undermining the team by hiring people he doesn't feel are good coaches. That's just manufacturing ill will when there is no reason to.
You keep harping on the timekeeping, but name a team that hires someone just to be the timekeeping coach. That's not realistic, and the reality is Garrett probably doesn't think he has a problem with it. Hell, you yourself had to talk about incidents 2 years apart, so it's not as if it was a week to week issue.
As for the idea Garrett has nothing to do, we will have to agree to disagree. It's nonsense to suggest he his twiddling his thumbs and playing solitaire on his phone. The "cancer" idea is nonsense too. That's just baseless vitriol, and again, just a misplaced need to feel ill will. Players like him, and by all accounts play hard for him. It's not either "Super Bowl" or "cancer", and it's also not reasonable to think that sitting at your computer you know what he does every day.