I'm really happy that CC is on board. A couple of things occur to me.
Bringing in someone like that, in a full time capacity rather than just someone NC can contact if he needed to, it doesn't happen in 5 minutes. There's things to sort out.
Was it Friday morning it got announced on here? So likely already actually sorted the night before. Following on from Tuesday I can't believe that everything was sorted in under two days.
So, was it in mind to bring in someone before Tuesday? Probably. Was NC aware it was going to happen, yes almost certainly, was he happy about it, haven't a clue only he knows that. Was he given a choice, again don't know but was he involved in the identification of CC?
And from the other side, is CC fully aware of what NC is trying to do style wise and ready to go with it, accepting that at present it needs some tweaking to get a better result from it. I don't know anything about CCs previous playing style, but if he tweaks too far and it ends up a mile away from what Critch has in mind, then Critch won't be around long after even if results improve.
So I do hope NC and CC had a good long chat beforehand about what's trying to happen. In my best imagination, I hope that Critch, having requested/accepted/been told whatever, that he needed someone else alongside him, said OK I've got the bloke in mind. Sadly I doubt that's the case, it'll be Mansford, but as long as they've discussed openly what it's about and all are happy, then so am I.