I think, to borrow a golf analogy, we're in between clubs from a schematic standpoint. The last 2 weeks, we've done a lot of iso/power stuff and it hasn't worked. We haven't seen a lot of "our" running game; RPOs, mesh point reads by Lamar, motion, etc.
Perhaps it's personnel related....the running back position has been in flux, ditto for the Oline. Maybe we're trying to find the right mix at RB, which Harbaugh alluded to. Or, it may be gamelan oriented. Look to grow the passing game early in the year, get a bunch of stuff on film, then break out the heavy artillery of the running game in November.
The assumption I'm working off of is that the different look to the running game is absolutely personnel related. It would make a ton of sense to not risk ball security with a group of backs who aren't comfortable with that whole operation yet. And if there are ball security concerns with Williams in particular, they're sure as hell not going to want him working the mesh point with Lamar, though I still can't understand him being the healthy scratch out of that group. Got to be more to that situation.
And I think we can all safely assume they're taking Lamar's health over the course of the season into account here too. He's already missing practices with a sore back (very fitting with the way he carries the offense).
I hope it's something they can eventually work their way back into later in the season. It's fun to watch and makes the offense so unique and hard to prepare for. But the improved passing game will have to continue to show up as needed. I'm looking forward to seeing Bateman get involved. They've got a nice group of receivers now that they can move around, and they seem to be getting open more frequently this season.