Khalil Laufau's name sits at No. 9 on PFF's list of the Big 12's highest-graded returning defensive tackles, a 72.1 next to it. On paper, that reads like a rotational piece: steady, replaceable, a name you scroll past on the way to the ones that pop. On tape, it reads like a defensive lineman whose entire assignment most Saturdays was to occupy two blockers so somebody else's stat line could look cleaner. https://twitter.com/PFF_College/status/2087925910242767144?s=20 That gap between the number and the tape is the whole story. Laufau isn't just a ranking heading into his senior season at…