Frost had a boat load of talent at UCF that had quit on the former coach. He came in, less egomaniac, installed the Chip Kelly Oregon offense, one that the UCF conference had never seen, and succeeded. He had a very good QB and really top notch skill guys. Lots of NFL prospects there.
He lands in ****braska, and frankly, the talent that Riley had recruited wasn't awful. Not top of the conference or anything like UCF, but something to build on. He came in like John Wayne, and then proceeded to run off most of the talent. All ego, trash-talking Riley, and telling players how soft and weak they were. Many left.
He's in year 4, still struggling with an athletic but mistake prone, inaccurate Martinez at QB. He has zero backups. He has failed to recruit and develop QBs and skill position guys. The DC has some talent on D, but there are zero skill guys on O. The backup QB is horrific and Frost either couldn't find or couldn't recruit a grad-transfer. Reminder, we got JT from Tennessee. Nubs got nothing.
As to the style of play not working in the Big10, I don't buy that. I'm not confident either way, but I don't see how the clown-fest I described above is a valid test to the theory! I personally think that a team with a lot of speed (like Kelly's Oregon teams) would give most of the division a hard time, save OSU who can match the speed. They might have to outscore Wiscy, but they might just do that. Just an opinion, hard to know.