It's hard not to like Devlin - if he can improve, that would be great - I think I read that Naismith has identified ways of getting even more of out him.
We have decent numbers in midfield, so Nieuwenhof is a surprise when we really need players in other positions, but folk have said he might be better than Devlin.
Even with those numbers in midfield, it's possible that Baningame and Haring could break down, and Pollock and Smith might not work out, so it's maybe not a bad idea to add in that area - probably needs freshening up, tbh.