When the Raiders played the Cowboys it was the play of the back-ups that sealed the deal and gave the Raiders the 31-10 win. This time, against the 49ers, the reserves blew the lead that the Raiders starters earned in their playing time. Brandon Myers was excellent while Nick Miller went from the guy who made a remarkable catch on the one yard line to the guy who fumbled away the punt that would have given Oakland the ball with a chance to comeback and win in the last 2 minutes. The run defense was horrible throughout the game but the back-ups didn't have a clue what they were doing. I was excited when the Raiders beat the Cowboys, but when you lose the most important pre-season game (Battle of the Bay) it is a big buzz kill. The back-ups can prove themselves against New Orleans or Seattle but this is not a good sign. Some Raider back-ups did good, like rookie free-agent DT Desmond Bryant. He provided good pass-rush and wasn't terrible against the run. Once again penalties were the biggest problem, especially the offense in the red-zone. The Raiders have 2 more dress rehearsals aka games to get ready for San Diego on September 14th.