...lengthy lay-off but I wondered this after the Navy game and then decided maybe he's rusty and needs time to get back in the flow.

I haven't seen yet where anyone else on the depth chart has leapfrogged him but as the season progresses he'll need to show he's progressing or there will be hungry guys behind him on the depth chart pushing for more reps. Guys like Cosper, Hill, Epps, Jackson and Davis will get some decent playing time in mop-up situations and with that comes chances to make a big play or two and show what they can do. Pau'u doesn't want to leave a window of opportunity open for others to come through.