I don't know wtf you are smoking, but none of those guys are "just going to get cut. Seriously. You're acting like the guys I mentioned have zero trade value and are just scrap heap rejects. In fact, it's completely asinine for you to claim that there will be players the equivalent of anyone but the WRs I mentioned in the cloud of players released on cut-down day.
As for taking over at LG, they could, most certainly put Karras there. They could also put Froholdt there. You know. The Guard they just drafted.
You're claims that players like Harmon "would just get cut" are absolutely stupid. No. They wouldn't just get cut.