I wouldn't include Ally or Baxter as they were part of our squad last season. It'd be like including Fleming and Ingram because they've signed new deals. New players in the squad are Fig, Traore, Seri, Tufan, Oscar, Tetteh and Sinik at this stage (if I'm not forgetting anyone). That's roughly a quarter of a squad which is about right. We'll no doubt be adding another 2-3 but wouldn't want to be changing too much more than that.
I don't think it was 'brutality' we were happy to keep Smallwood and Eaves but neither wanted to be a squad player. Eaves (and I think Tan) referenced this when Eaves left, that he was told what his role would be and he was happy to leave. That suggests we were happy to look at keeping him. Elder was probably told he would have to fight with Fleming for a starting spot, but as he had to do that end of last season already I don't think that was particularly news to him. He'd want to be playing a fair bit with Australia making the WC so I'm actually a bit surprised he wasn't pushing for a move.
RB is an odd one as you say given Emmanuel's issues and Coyle's limitations. It's why when that rumour about spunking 5m on a LB came out I was so surprised when RB is clearly our weaker position as things stand.