Could you imagine if the Cowboys had selected Johnny Manziel instead of Zack Martin? What if Jason Garrett didn’t lock himself in his office for seven hours and watch every snap of Jalen Ramsey and Ezekiel Elliott? Since Garrett took over as the Cowboys head coach, the team has done remarkably well at drafting. In six seasons, the Cowboys have drafted five All-Pros, and that doesn’t even include their nice, new franchise quarterback. That’s a pretty good haul. But which one of the Cowboys draft picks during Garrett’s tenure is the most significant?