It's possible to play physical football in the spread offense, look at Baylor, the blocking schemes are powerful, as well as the fundamentals that they teach. Oregon's offensive line teaches technique over physicality, and the scheme isn't built around power. I think perhaps Oregon should take a little from what Baylor has done and implement a bit of a power game to their offensive style. Run some powers and traps, it can still be run at a breakneck pace.
Washington does pull guards in the running game, but I don't like how they pull. Its pull and read, rather pull and seal. You don't need highly ranked recruits to teach physicality, Stanford proved that. Oregon is a great program, an elite program, but as I believe I mentioned early in this thread, many elite programs go decades before breaking through and winning National Titles(Florida State). Its up to Oregon to adjust while still maintaining the soul of what they do.
Look at UW in the late 80's, they realized that the game was becoming increasingly built around speed, so they figured out that if you can't jump, you can't run, recruited speed, built a physical, fast aggressive style of play, and went to three straight Rose Bowls. Nebraska, who got clubbed by UW in consecutive years and got shut down by Miami realized they needed to recruit speed to win and tore off that stretch from 93-97 where they lost one regular season game, played for four titles and won three.
Oregon needs to gravitate in the other direction just a little bit, or else they will always run into these issues of getting slowed down and beaten up by bigger and stronger teams. There aren't that many left, so they will still win 10 games a year still.