Drew Allar was the highest-ranked quarterback recruit of James Franklin’s tenure at Penn State, a 5-star prospect in the 2022 class who at one point was the nation’s No. 1 high school quarterback.  However, Allar didn’t reach his potential with the Nittany Lions, especially in the most important games. Allar finished his Penn State tenure with a 1-6 record against AP top-10 opponents, completing just 50.3 percent of his passes in those games, according to ESPN.  So, what went wrong for Allar at Penn State? The Pittsburgh Steelers have a theory, and they’re trying to fix it. A recent ESPN article by Brooke Pryor reported that the Steelers have “essentially uninstalled” everything Allar learned at Penn State mechanically, beginning to “rebuild his fundamentals from the ground up.”  It’s an unintentional yet clear indictment of how former Penn State coach James Franklin, offensive coordinators Mike Yurcich and Andy Kotelnicki and quarterbacks coach Danny O’Brien developed Allar.…