I think your analysis is a little off.
I agree LSU played poorly on offense. I think the RT Stewart is a huge liability. He got pwned basically every play and Matt Flynn looked like the speed of the game was too much for him at times.
BUT.
Miss St. while not very good, is an SEC team with a decent history and pulls some talent. That being said, LSU wrecked them defensively and that's not going to change from week to week. We might have watched college football's best defense last night. What is going to change from week to week is the friggin fullback isn't going to get the bulk of the carries. LSU might actually play in a 4/5 WR set with 1/0 RB and throw the ball 35 times in a game instead of basic handoff right/left/up the middle. That was polar opposite of any Gary Crowton coached team in histoy. I expect a test from VT next week but in the end the more of the same.....a LSU victory.