During Penn State's 15-practice spring schedule, coach Matt Campbell met with the media six times, including after the final, rain-soaked practice at Beaver Stadium. During those availabilities, some in the team meeting room at the Lasch Football Building, Campbell was mostly relaxed, unguarded and open about the Nittany Lions' progress. In the process of building his depth chart , Campbell made some illuminating comments about his roster, particularly when individual players impressed him. Here's a look at some of the most interesting things Campbell said during spring practice. Penn State's quarterback depth was "interesting" Penn State Nittany Lions quarterback Rocco Becht goes through a throwing drill at practice at Holuba Hall. | Mark Wogenrich | Penn State On SI Quarterback availability certainly tested Campbell's patience this spring. Rocco Becht did more than expected but still was limited, and projected backup Alex Manske was out entirely.…