The 2017 NFL Draft is almost custom-designed for the Dallas Cowboys. It is particularly strong in the positions they most need, and the weaker positions are ones where Dallas is in very good shape already. The only negative thing for them is that they sit near the end of the draft order. What would be really good for them is for teams ahead of them to reach for positions that the Cowboys are not interested in, particularly in the early rounds.
When you talk about reaching, there is arguably no position on the roster that sees that more than quarterback.