http://mmqb.si.com/mmqb/2017/04/20/aaron-hernandez-suicide-nfl-impact-notebook In January, I did a story with Cowboys COO Stephen Jones on Dallas’ potentially franchise-altering rookie class. And in the course of our talk, he raised something interesting to me—the team was going to look hard at what he viewed as its biggest draft slip-up. That was waiting until the fourth round to scoop up Dak Prescott. On Wednesday, I circled back with him to see what he and his scouting staff had identified as the “miss” on the 2016 NFL Rookie of the Year. “The biggest thing for us, and we’re trying to see how we’ll cultivate it and do better with this, is how you differentiate when you say, ‘this guy’s got great football character, the ‘it’ factor, he’s a leader,’” Jones said from his office. “How do you quantify that in good vs. great, and great vs. rare. That’s probably what we missed the most with Dak. “We underestimated how just rare his leadership skill and his football character were. That contributed to his maturity, in terms of being able to walk in the door and have success at our level so early.” So there’s our offseason lesson of the week, with the draft a week away: Talk of intangibles may sound corny, but a guy’s makeup matters and even more with the quarterbacks than anyone else. Which is to say, when people say Deshaun Watson is off the charts in that area, you should listen; and when Davis Webb and Pat Mahomes are positioned as gym rats, pay attention.