You can draft well and still miss the point. The Cowboys did plenty of tidy work and somehow never got around to wide receiver, which was the need that mattered most.
The Nolen pick is the one the value grade keeps tripping over. On the needs board they went 1 of 8, with interior defensive lineman the one that mattered most.
Building through the lines is a philosophy, and they stuck to it.
It grades out a shrug today, with plenty of room to move either way.