The Cowboys will have trade back options if they want to add some more picks. The Dolphins, Raiders, and Jaguars select behind the Cowboys and all 3 could be interested in a QB with all 3 having multiple 1st round picks with them having 1st round picks above these selection they could see this as a luxury pick and look at a QB if one of the big 3 drop or if they are really interested in Love.
Teams that have a QB need.
Patriots: 23, 87, 98, 100- Could the Cowboys move back 6 spots and add a pick or 2 in the top 100?
Saints: 24, 86, 130- Brees isn't getting any younger, and Taysom Hill isn't the long term replacement.
Colts: 34,44, 75- This would be a bold move, but if the Colts want to move up it would cost them 34 & 44 so this would give the Cowboys 34,44, and 81 to build out your offense.
Another thing to keep our eye on, is there a WR who drops say a Ruggs or Jefferson would a team look to jump up to 17 to get ahead of Jaguars, Eagles, and Vikings to go get their guy or maybe one of those teams jumping up.