Yeah, Riggleman is the difference. Not the influx of actually talented players.
Virtually the same offense, though. Slightly different with Pudge/Kennedy, but remember Flores was locked in this time last year. It does help to have this Willingham vs. last year's version, but Dunn wasn't struggling like this last year.
I think it helps to have a manager who isn't so stubborn and makes adjustments a lot. We don't always like Riggleman's adjustments, but at least he does it so much that if the team doesn't have things as they should be, it won't stay that way.
Acta would use a crappy line-up and just stick with it for two weeks.