Concerning "Bucket Step Bob", it bears mentioning that he was hired by Mike Price to employ a technique that was ideally suited to Price's offense. If anyone has ever scanned the old Mike Price one-back spread playbook, you'll notice that there are very few running plays featured and most of them are draws. The bucket-step technique is a good technique for a draw play, as your offensive linemen would be falling back anyway to give the impression that you're passing. For all the frustration Bob and his technique brought about, I place more blame on Mike Shula. Why on Earth would you employ a playbook filled with conventional pro-style running plays (power, iso, counter, etc.) and then allow your OL coach to teach only one technique that really only works for draw plays? Bob was ignorant and mule-headed to be sure, but that's another illustration of Shula's mind-numbing incompetence. Anyway, that's the end of my rant on that topic.
As far as Bama employing zone blocking schemes, as others have noted we've used quite a bit of zone blocking since Nick Saban arrived in 2007. At Miami, Stoutland's lines used a heavy dose of zone blocking. So no great surprise here. I for one think it's a good thing. We used a lot of zone blocking in 2009 but moved away from it a bit last season and I think the run game suffered as a result. As others have said, we had a bit more bulk and a bit less agility last year, so I'm sure that we were simply trying to cater to the talent available. But I'd certainly like to see more of it this season, so this is good news.