You might be the dumbest poster on Surly, which is saying something. First, your characterization of Bamba's year last year could not be more wrong. Second, it's not that we can't be good because we lost Bamba. It's the lack of big men replacing him. We don't have anyone who can come close to replacing his production (and Sims' production as the backup C), therefore there will be a drop off. I don't need advance stats to show this because i can tell with my eyes, but because you're blind as a bat and dumb as a rock, we'll show some stats to back it up. Advanced stats in college basketball are iffy so, again, not relying them but they confirm what's' shown on the eye test. Also, all of these metrics have individual flaws, but the fact that they all agree that Bamba was by far our best big man last year and it wasn't even close should tell you something. Using sports-reference:
Bamba: ORtg: 118.5, DRtg: 89.6 (both of those are fucking elite). WS/40: .212. BPM: 11.2. These stats are all in the ballpark of what Bagley and Ayton did last year; this is the type of impact Bamba had.
Osetkowski: ORtg: 99.9, DRtg: 101.3. WS/40: .097. BPM: 3.6.
Sims: ORtg: 108.4. DRtg: 100.8. WS/40: .109. BPM: 2.6.
What these stats tell us: Bamba was great last year and was, by far, our best player, excluding Jones. He and Jones (who had a 121.3 ORtg, confirming what we saw on the court) were shaping up to be All-American level performers until Jones tragically came down with cancer. Osetkowski is a horribly inefficient offensive player, to the point where he was actually below average last year. This matches the eye test and raw stats, 40% FG, 29% BTA; those are god awful numbers. Sims was good for a true freshman and will likely become a very good player, but Sophomore Sims would have to take an unbelievably large jump to get to where Bamba was this past year. And once again, it's unlikely we get Sims' production as the backup C last year out of anyone on our roster next year.
All this stuff is what myself and many other posters saw on the court last year. You perception is way off, and I'm confident this will do nothing to change your mind but whatever, it's good for the rest of the folks to see anyways.