A review of four hot issues from the San Francisco 49ers' 35-11 road win over the St. Louis Rams:Digging deep: The 49ers simply had to win this game. They were 1-2 and were outscored by a combined 56-10 the past two weeks. Their offense looked horrible, injuries were piling up, star pass-rusher Aldon Smith left the team to seek alcohol rehab treatment and they were playing on a short week. The odds were stacked against them -- and the 49ers responded big time.