I don't really like all this talk of earn a shot, deserves a go, give them a chance etc.etc. For me, it should be down to one crisp brutal question - Will you do more to make England win than anyone else I could put in the position? Yes, in the team, No, out of the team, and nothing else in the world matters. There's a place for "Will picking you help England win next year" but that's about it.
Right now, I can't make a concrete case for Daly being the better choice than Joseph, because I think Joseph's been pretty decent for England this year. Last game, his defence was impeccable other than getting bounced by Dacey, distribution good apart from that one pass to Watson, made a few good breaks and a nice kick. One bad kick too - but then Daly put in a stinker of a kick too.
If Jones turns around and puts Daly in for whatever reason, I'll be happy enough. But I see no reason to change, not while Daly is something of an unknown factor at test level. I guess I'd feel differently if I thought Joseph was making a mess of things, but he's not.