If the argument is that 5.25 yards per rush attempt is good, then wouldn't it need to be acknowledged that the "quirks" to our offense that you mentioned would be a contributing factor to that average? I don't disagree that there may have been times when a more straightforward playcall might have produced a better result. But, I don't know that we can completely oversimplify and expect to average 5.25 yards per attempt if we made dramatic changes to the offensive scheme (i.e. completely eliminate the "quirks" and "trick" plays).
I think the plays within Danny's offense are good. But, probably room for improvement on the timing of certain playcalls and making sure the personnel involved are the right guys to execute the play being called.
Of course, we're all frustrated with the record right now. But, I don't think things are as bad as it may seem at the moment...