its a combination of BOTH. If you think missing your starting PROBOWL HOF LT, your PROBOWL CB, and are starting your 4th STRING OL is NOT an EXPLANATION as to WHY they look bad, you're delusional. LOL...are you suggesting that every team should be GREAT at all positions depth wise? That is impossible. If you're starters go down, it is going to show. There is a REASON someone is NOT a starter, plain & simple.
If the 9ers lost Willis, 2 starting DT's, and Clemente, and the D suffered because of it, would you really just say "well, its the 9ers fault for not having backups that are as good as the starters". That is COMPLETELY unrealistic. COMPLETELY. If you lose starters, ITS GOING TO AFFECT THE WAY YOU PLAY, PERIOD. Its called a discrepancy in TALENT, which makes STARTERS and BACKUPS who they ARE. EVERY team is like that.
Go back to last year...who was the most INJURED team, and by A LOT all year? The Seahawks. And it showed. 2nd string QB, and 2nd & 3rd string OL all year, and i dont even want to mention that the ENTIRE WR corp was injured to the point we had to go get two guys off the STREET. Go and olook and tell me WHO was the leading WR last year for us. I will give you a hint: it wasn't a fuckin WR. But, that is no "excuse", right? The Hawks should have rose up, with LESS talent, and won anyways.
I'm really annoyed at people who can not decipher between "excuses" and "explanations" as to WHY we have played poorly. Sure, there are other FACTORS, but KEY injuries have been a LARGE PART of the reason. If you cant see that, that you should assess water polo instead.