You're right, Utah hasn't faced a passing attack like this yet, but with two weeks of preparation, home field advantage, and the Utah defensive front 7, I like the Utes to win this one by 10+. Cal really hasn't faced any good teams yet. Props to them for winning their games, but they didn't exactly look like world beaters against Washington, Texas, and Washington State. Utah is the first really good team they've played so far, and I would be very surprised to see Cal come into a hostile environment and win against a legitimate top 25 team.