I wasn't originally going to trade but the Rams offered a stupid trade lol.

This was all based off what Christian Parker has said, team needs, what the Cowboys have planned for FA, and Draft experts like Voch Lombardi, Footsdaking, and Bryan Broaddus.

Reasoning 

13. The Cowboys need help in the secondary with Bland and Reveal you're only corners Delane  will be a good 3rd option especially if Bland's foot injury keeps coming back.

20. Like mentioned before the Cowboys need secondary help, with the safety positions more then likely being completely new, Christian Parker also mentioned wanting a Nickle player who is a do it all hybrid, this means  the Cowboys will probably have a 3 safety look with the room possible looking like Reed Blankenship, Jalen Thompson and McNeil-Warren 

61. The Cowboys have a ILB need, with it almost a lock Nekobe Dean will be a Cowboy next year it would look like Dean and Overshown, with both of these guys having injury history the Cowboys will need depth just in case, Jake Golday is perfect for that with up side of becoming a starter 

151. The Cowboys are going after Edge in FA and or trade, Crawford would be a good depth piece 

176. Sapp is a interesting one, I see him more as a 3 tech then a Edge, that being said with the Cowboys 3 D Tackles being the main focus on the Defense it would be good to add a young player as depth 

180. Tbh I picked best available Defensive player here lol but I can easily see the Cowboys adding another young safety for depth and special teams guy

224. Kinda like at 180 I went with who I felt was the best defensive player left, but Footsdaking is high on Boettcher, he would be a special teams guy at first who the Cowboys can develop. 

Dallas Cowboys 7 round mock draft