Yeah, but it is ok to let the leading rusher in the NFL walk to save cap money because anyone can run behind this O-line, right? Shouldn't that also apply to a receiver playing with the same line? Why is that rationale different for Dez? The answer is that you have to keep the cap in mind. Dez may not be playing this very smart. We will see. I could see a scenario where Dez walks and Demarco stays, if Dez' demands are too outragious.
Dez can play 5 plus more years and his arrow is pointing up. Everyone wants the Murray of last year (where was everyone last year wanting to sign Murray to 8 a year). He has had one great year and every other year he has missed multiple games.. He may already be used up (due to number of carries. Go look up the curse of 370 for evidence of that). If not, very seriously doubt he last as long as what Dez will. I'm betting he isn't a 1,000 yard rusher in two years (especially if he isn't playing behind this line). Meanwhile, running backs typically translate better from college to the NFL than WR's. This is also a very deep class. So, between keeping Dez (a very special talent) and Murray (a high character guy, a very tough guy who plays a position that is undervalued and easily hurt), I choose Dez every time. Go watch the Houston catch and answer if any WR could make that catch. WR is less dependent on the line as a running back is.
Now, do I want Murray back? Yes. But at the right price. If not, I have no problem letting him walk.