I keep seeing this rationale, and it boggles my mind.
The problem isn't the system, it's the guy calling the plays. Plays like running play action on 3rd and 1 when you've been running the ball down their throats in the first half. Perhaps if you have Manning and Harrison, it's a good risk. We don't. Plays like Morris losing 5 yards on a pitch out when we were moving the ball again. Plays like going to the well too often with Lemon rolling out.
It's been this way too often this year. The offense moves the ball effectively for awhile and then shoots itself in the foot with the wrong play at the wrong time. My fear is that even if we upgrade our talent, these misfires will still occur at the most inopportune times.
You keep the system for continuity. You fire the guy responsible for making it work. They could hire someone like Baggett, and the problems are minimal. Or you can find someone to run the system, and you'd have a little extra work. But it's still not as drastic as people make it out to be.
Take a look at the Jets for a minute. They have a new coordinator in place, and their offense has been consistently better and more inventive than the product we've put on the field.