You're completely missing the point. BOTH our centers turned up hurt. Whether DC2 was going to score 4 points and play 12 minutes, or 8 points and play 18-20, is immaterial -- since he wound up not being to play AT ALL. Pre-season, by contrast, his health was looking up and there were positive practice reports. Obviously, having a big guy down low to score and rebound (which he was good at), would have been a big improvement in team depth, size, rebounding, balance and overall success.
Moyer's RS was unexpected, and reduced depth further.
Then Chuwku went out. No one could have predicted that.
What was left was a cobbled-together front line with a stretch-4 at center (no beef) backed up by a lanky PF who liked to shoot from 18 feet and had no idea how to play defense. And a 6'8 guy (Robbie) as PF -- that the coach expressly stated wouldn't have played anywhere near the minutes he got if we had had any choices (we didn't). We got massacred on the glass agains the big boys of the league, and instantly became a one-dimensional jump shooting team with very limited low-block defense and offense. We were easy to defend and struggled, despite a couple of high profile wins when our jumpers were falling.
How you can claim that injuries weren't a major factor in last year's tanking is beyond me.