Paul Daley's striking will be way too much for Diaz too handle. Daley actually throws them with some kind of power unlike Nick.
Nick's BJJ is probably even more overrated then he himself. If he get's him down however it could be interesting.. but he definitely will not submit him just like that. People said the same thing when he faced KJ Noons.
Nick Tko'd Frank Shamrock, true long after Frank's prime, but you can't over look that when talking about Nick's striking, that slap boxing may seem to not work but it's effective. *Frank was also in such bad shape injury wise he could hardly move, but still.
As far as his BJJ...come one man, his wrestling sucks so he doesn't put guys on the ground much, but he's a Cesar Gracie Black belt that's not something that gets handed out on a street corner.
What happens if Noons drops Daley in the first? What does that mean for Nick who beat KJ at his own game in the second fight? Nick is a highly improved fighter from his time in the UFC and EliteXC when Noons stopped him on cuts.