No way can you compare it to the Saffold debacle, ... first, SJD & Gaines are young vets with previous playing time, after Saffold left the rookie Noteboom experiment began at LG, when that failed then Corbett fell into place, and he also had never taken an NFL snap at LG.
If anything, Like Fox & Floyd, I'll attribute most of SJD and Gaines' progress due to Donald, i'm not sure how much playing time either of those guys received while Brockers was also in the line-up.
Look, if Brock stays and we can afford it, that's fine by me, but if he prevents us from re-signing guys like Floyd & Williams as well as us getting a quality Free Agent Center & WR, then i'll hand him his pink slip myself. jmo.