Yeah, Guzman was impressive, but it was a totally one sided fight. He should have picked it up in the latter stages and looked to finish it.
Would have been very interesting to see the fight with Scott Harrison that was supposed to happen, but he pulled out when he couldn't make the weight.
He was supposed to be fighting at super featherweight (130lbs) for this fight, and yet he comes in to the fight at Welterweight (147lbs) shows a total lack of discipline which may explain why he hasn't had many big fights over the years.
The Ouma fight was OK but nothing special. He did well to recover from the first round knock down.