One more thing...
We have to remember the perception of "well coached" is going to vary a bunch depending on your background. And most of that will come from your experience with coaches (if you even played), and otherwise you are probably just pulling stuff you heard from Vitale, etc. But the style you played, the things they emphasized, and whether or not they were even a good coach themselves will dictate what you think is "good coaching". Granted, there are certain fundamentals that will be pretty standard, but the scheme, style, and philosophy issues won't be. I think for example many don't buy Frank's uptempo style b/c most folks didn't play that way "when they played". Or they played in a different uptempo style. Or how a coach attacks pressure or inbounds plays, etc. There are many, many successful ways to do this and most of the successful folks (as coaches) did it with better players than their opponents.
This isn't meant to be a grand defense of Frank, there are probably things he could do better, but I think its important to remember as we read (and will read more of) these "Franks sucks as a coach" posts. And really in any comments you read on a message board. Just b/c you played or were taught a certain way doesn't make it the "right way" to play or coach.