Bama has lost 2 starters, Lewis and Womack, both of whom could return by year's end. Womack should be back around week 6 or 7. The other guys are reserves, but would have seen increased snaps.
The troubling issue is that the injury bug seems focused on LBs in particular, which was nothing short of disastrous last year. Thank God the Kaho kid decided not to sign his LOI at Washington, because Bama needs every possible bit of LB depth.