Interesting. I reallllly think (and it's obviously not some genius conclusion on my part) that's the key to properly assessing a coach as being a superior tactician on offense is to see his skill and system translate to a second QB- whether it be a successor in future years or the backups over the course of your current starter's tenure.
We're often too quick to crown the next Bill Walsh and then either D Coordinators figure out how to expose flaws and/or the "offensive guru" stops looking like a football MENSA member because he lost a QB that made him look better than he was.
I really like what I've seen from Babers so far- on the sidelines and off - but I'm just more conservative in the hero worship around here that always happens when our coaches become corches.