I wasn't thinking anything, I asked a question about a specific stat you used. That is how I work, i.e. no preconceived opinion. Well, other than that you, sometimes, don't fully understand the stats you use to "prove" a point.
Sorting by the number of PD's is incredibly misleading. Especially, if the safeties are being told to keep stuff in front of you and don't take the risk going for the ball. If that is what he'd be taught to do, you'd expect him to have little or no PD's.
As for missed tackles, I don't know where you get the number, but he also lead the team in tackles. For the last two years. combined and solo tackles. you would expect that to correlate, somewhat, to more missed tackles than someone else on the team. Even "missed tackles" is subjective. If you meet a guy at the LoS but he escapes your grasp where someone else tackles him within a yard, you "missed" the tackle, but the result wasn't a big deal. if you miss the tackle and he runs X more yards for a TD, it is something completely different. Yet, both would be recorded as a "missed tackle".
He is leading the team in actual tackles and missed tackles, means he gets to the ball carrier, too, right?