If I'm UW, it's slants, slants, and more slants. If Texas wants to keep "everything in front" of them and give that awesome 7+ yard cushion, sure I'll take 5-10 yard slants all day fucking long. Penix can make that throw in his sleep. Eventually we creep up and Odunze hits a double move deep and our slow safeties can't get to it.
After that I'm running 4-5 wide, and have a couple of checkdowns. If Penix needs them it's there and if not, take the top off. Once the safeties to back off to respect the bomb, run, but not just counters - reverses, jet sweeps, quick hitters that go away from the interior DL. Mix in some screens to punish overpusuit in the D-line and slow down that rush. Will also move the pocket with rollouts, cut the field in half for Penix and get away from DL pressure.
The gameplay itself isn't rocket science: the longer a play lasts, the worse for Texas and the better for UW. If Penix can let the route develop either via rollout, play-action, screen, trick-play, etc our secondary has demonstrated they won't hold up, and UW receivers are big, strong, and have NFL catch radius. 50/50 balls are more like 60/40 balls for them. Any play for UW either needs to be a super quick hitter like a slant, or something that builds the protection in for longer developing. Then once we concede the honest box with pressure, Penix can do his thing.
That's what I'd do anyway...