Kurt Warner understands more than most about the quarterback position. He didn’t reach the Hall of Fame by accident. During his long, winding career, he also learned the mistakes teams could make in developing younger guys. While most remember Warner for his incredible runs in St. Louis and Arizona, they often forget he had a brief stint in the mid-2000s with the New York Giants. Here, he learned some lessons about how it can be so easy to mismanage a high draft pick. That lesson could be easily...