I don't think these guys realize how awful defense is across the board in college football. Last year, UW was 60th in yards per game and 58th in points per game. So they were already right where Coker is hoping they improve to this year. I think it's going to have to be quite a bit better than that--and, of course, Penix staying healthy--for the team to get anywhere near the lofty expectations some have for them.
When I was listening I was thinking this same thing. 60 is bad defense in this day and age. The top 25-30 programs play a semblance of good defense. Outside of that top 25-30 you're as likely to give up 40 as 20 on any given weekend.
One thing to hope for is creating more turnovers. I think that was supposed to be the goal of the new defense. Even if you give up more yards and scores, creating turnovers and sacks.