I've always thought it's much harder to replace experienced defense, and you're usually in for a tough year when that has to be done (next year's Sioux). This year, my expectations were very high, given the entire defense returned. They have lived up to defensive expectations, with the exception of the early season penalty calling which put them in a hole game after game (although, without looking at the numbers, they didn't give up many PP goals). At any rate, it seemed that the Sioux would have enough offense to win consistently when they held opponents to very few goals, but that hasn't happened, in spite of some good numbers from the freshmen class.
A team with this many upper classroom, an experienced defense, and a very good, productive freshmen class reminds me of the '82 team, but the results are much different.