Crawford and Poe, reasonably so, were in the DT position. JJT is a little worried about Crawford, but he's finally playing the position that the Cowboys extended him to play. He's been a good player for us, but not great. JJT is worried coming off a major injury, age, and getting pounded by centers and guards - that his body would be able to handle the rigor. The point of this discussion is Trysten Hill is going to have to get some reasonable reps during the season, whether the Cowboys want him to or not.
If you do not have DT/NT, you can not stop the run and can not get push to stop the pass. QBs hate pressure up the middle, RBs hate stopping momentum and bouncing outside. This is why the Cowboys will not contend for any championship (East, NFC, or Super Bowl).
To hell with a S, the Cowboys need +290 pounders that can cause havoc in the middle so the pressure can be felt from the edges.
There is a reason why Mr. Cowboy, the 1st draft pick in Cowboys history, was a DT. They is a reason Randy White was converted from MLB to DT. There is a reason the 1st and most important trade the Cowboys made was for a former Pro Bowl DT name Tony Casillas. There is a reason why Jimmy Johnson with the 1st overall pick drafted Russell Maryland DT from The U. There is a reason Bill Parcells came out the 2005 draft with Marcus Spears, DT, LSU, Chris Canty DT, Virgina, and Jay Ratliff, DT, Auburn. There is a reason, even after drafting Spears, Canty, and Ratliff, he drafted future Pro Bowler Jason Hatcher, DE/DT, Grambling.
This is not rocket science on how to build a championship contending defense. Tell Jerry and Stephen to go read the Cowboys history book. Stop trying to get cheap deals with unreliable or unavailable players and invest in you Defensive front line. Also, don't cut you 6-6-270 pound 1st round pick, with the frame to add 20 pounds, because you wasted time on drug heads not giving him the opportunity to develop like Parcells did for Jason Hatcher who became your last Pro Bowl DT for Jason Garrett.
Jerry Dumbo GM Jones is at it again.