I'm disappointed that most posters think I have it in for Murray or Terrance Williams. They are very good players for the Cowboys. It would hurt tremendously if Dallas lost them.
However, if the coaching staff evaluates these rookies who are making amazing catches against excellent coverage (from 2nd and 3rd stringers, I know... hey, sometimes even a 2nd or 3rd stringer can be in good position).... IF and only IF Byrd and Newsome are starter quality, today... then the Cowboys have had the good fortune to have acquired diamonds during free agency.
In that scenario, the Cowboys cannot keep 7 WR. Cut Murray and one established WR's, (not Dez), and get established, quality players from other teams who lack even a serviceable WR. In exchange, get an LB just below the Luke Kuechly level, or a defensive lineman one step below Haloti Ngata. I think that Dallas has 5 above average WR. Dez is a cornerstone player, Terrance Williams is one of the best #2 in the league. Dwayne Harris is a cornerstone of special teams, Cole Beasley is very good in the slot, to the point that defenses are double covering him on occasion, and the Cowboys offense as a whole has its best ypc when Beasley is in the lineup. Devin Street has been running pro routes in college, and I think he's going to be just as good as Terrance Wiliams.
There's not one of those five I would cut in favor of replacing them with Byrd or Newsome, if the WR position was in singular focus. Getting Robert Mathis and Chad Greenway, (or similar talent level) for Murray and Terrance Williams, would make a big difference, would at least bring the defense up to slightly below average. Currently, it seems as though Dallas' defense has grocery store clerk quality talent along the line, I don't care how good Marinelli is, he is not Houdini.
The RB position is loaded in a similar fashion, too, and Dallas can only keep 3.
In summary, I don't want to part with Murray or Terrance Williams, but they seem like their trade bait value is quite high, and the defensive line and linebackers do not have talent, even looking at Hitchens and Minter in the most optimistic light.