If you call two NT guys (SJD & Gaines) who have never had an NFL snap being loaded, ... ?
The Rams went to the Super Bowl last season, stacking the line-up with a quality low cost veteran NT might just be enough of a difference maker for doing it again. Suh was our expensive 3 down DT/NT, Peko would be a 2 down NT and come at a much reduced CAP rate.
Brockers had his worst season since coming to the NFL last year, he was spread thin playing 3T, 5T and even a little 1T where Suh would often line up, he also was reported as being less than 100% physically sound. Suh, Westbrooks & Easley are already gone & Smart has only had a handful of snaps himself, Fox was injured and also had no snaps in 2018. Besides his own snaps, Franklin is likely to get those 5T reps that Westbrooks & Easley received last season, and right now it appears that Brockers & Fox are the only players capable of working that LDE rotation with Franklin, although Fox may also become Donald's first back-up. Brockers will probably be rotating in at DT on obvious passing downs and at LDE when Franklin needs a breather. If Peko & Gaines can hold down the fort at NT in obvious run situations, SJD will rotate with Brockers at DT imo.
Wade Phillips throws so many defensive formations up while also mixing players outside of their normal positions, you could be hard pressed to figure which gap will be defended by whom on any given play, so I guess we have to adjust what to expect somewhat. Donald pretty much sticks to his 3Tech ground, where both Suh & Brockers could be found almost anywhere. With Suh gone, Phillips may not be able to move guys around as freely as last season, although I suspect Brockers will still be covering lots of ground. jmo.