I'll just put it this way, we were 6-10 with:
-Singletary/raye's idiocy and bad play calling
-A hurt alex smith and horrible backups
-Injured frank gore the last 5 games of the season
-Starting center hurt beginning of the season(baas did improve eventually)
Games we could have won with alex+gore, even with the bad coaching remaining:
Panthers- Alex had a lead before he got hurt, david carr blew that lead.
Rams- Game that officially took us out of the playoff picture at the end of the year, troy had his meltdown and who knows whether or not alex could have won this for us. But Frank gore would have been a huge difference compared to westbrook(who hadn't played much and didn't seem to be an every down back) and dixon(just plain sucked).
Just those two games bring us to 8-8 and a playoff berth. I feel like last season was the "perfect storm" of absolutely everything wrong you possibly could ask to go wrong. Bring in a very talented coach like harbaugh and cross fingers that guys stay healthy and we could easily be 8-8 or better.