A broken tackles stat would be useful; can simply be one missed tackle by a defensive player = one broken tackle by corresponding offensive player.

It would be nice, but can't be directly linked to missed tackles since that STAT isn't accurate yet.

Oh, I didn't know it wasn't accurate. But if missed tackles is even at least 50% accurate, having broken tackles would be useful enough in comparing the performance of players.

Technically it's accurate, but what is classified as a 'missed tackle' is too broad.