A key question about the Chargers offense is what type of impact RB LaDainian Tomlinson will have this season. The back was the topic of a question during a chat with NFL.com’s Gil Brandt on Tuesday, and Brandt thinks that L.T. will have a big season coming off a career low in rushing in 2008:

LaDainian rushed for 1,100 yards and 11 TDs last year, which is not bad for most. I think he’ll be a little better this year — somewhere near 1,200-1,300 yards rushing. The OL will be better with Marcus McNeill healthy and Nick Hartwick back at center for the full season. I think you’ll see Darren Sproles get about the same number of carries he had last year.

One extra note: I expect chargers WR Vincent Jackson to have a breakout year in ‘09.