So you would rather have Brockers (older) over littleton? I guess it would depend on the new defense.
As for the "against the run" comments I read on here, name a good run stopper who doesn't have a stout guy in the middle (NT) eating blockers. That's been an area of concern since they started moving Donald around and shifted Brockers to DE.
Pass coverage in general is essential these days and that's where littleton excelled.
But like I said, I guess it comes down to the type of new system they're installing.