That is exciting news. He did, but I kinda don't think it was by accident. Marchie Murdock was the first UDFA signed by Dallas on the close of the draft. They know the Big 12, and they know what they are after. I think he will get every chance to prove himself. While he might not have been a high profile standout in college, his attributes line up with what's expected of an NFL receiver.
By contrast, I think AL is more of a "tweener". He reminds me of former MN Viking Steve Jordan, the protoype for a hybrid receiver/TE. Some have since termed that an H-back, although I don't know if that is still in vogue.
I wouldn't read too much into Murdock's stats. He had two catches for 35 yards and about 30 of it was on one play against a prevent D. That said, he exceeded expectations last season, and he seemed like one of the leaders of the team. Hope he gets more chances.
Lazard's situation is a mystery to me. After watching him own everyone he was put against for four years, it's difficult to accept that he's not good enough to be on an NFL roster. I still think he catches on somewhere.