attitude aside, because there is no comparison there. It's a pretty fair question.
IMO, Ngata doesn't have anybody else on the front line that matters. Upshaw to a degree but he's still learning on the job. So....with no help the guy is double teamed most of the time. Makes it kind of tough.
Hopefully T coming back helps. Not too mention Ngata was never a big sack guy.
Haynesworth at one time was a beast.....