Diaz has more losses than he should have. He's got the abilities but it's a coin toss whether he comes in with the right game plan. Against Sanchez he should have used the strategy he used against Sherk, and vice versa. Against Joe Riggs a lot of people felt he deserved the win. Given that he has the ability to be an 18-3 instead of 15-6 with 3 straight losses. He was a bit underrated because of that, so it really wasn't that surprising that he beat Gomi.