To me the defense will improve, the question I have is how much? We have many returning starters, there seems to be an established d line rotation at this point, linebackers are solid, White at corner is solid, I think someone steps up at the other corner and at nickel. Safety seems to be an issue but it has been an issue the last two years. Having two DB coaches will help with the guys coming in. On paper the defense is improved and I believe it has improved on the field also. The other thing that I think makes the defense better is Cal should have a pretty good run game this year, with Goff stepping up to another level and all receivers back except Harper I see the running game opening up as opposing D's will have to protect against the pass. A solid running game will keep the defense of the field and allow us to protect leads.
As for wins I think we beat Texas, I attempt follow other teams and leagues and from what I'm seeing Texas is not that good.
Utah should be a win also, they lost a lot of players.
UCLA will no doubt be better defensively but the offense takes a step back this year. I think its a close game and Cal pulls it out.
Stanfurd is another team I think took a step back but who knows on this one.
ASU tough D and well coached, Id say its a tossup
Oregon is a question mark, a new QB usually means your not going to have the success you had in the past but hey its Oregon, I think Oregon wins but not in the blowout fashion they have done so recently.
USC, we played em close last year lost by 8, I think if there's a big improvement in defense as in their top receiver doesn't have a career game we win this one.