SANTA CLARA, Calif. -- Here are some highlights from our San Francisco 49ers' chat, held Thursday:Tommy from Sacramento: Will Aldon Smith start this week against the Saints?BW: Not sure yet. I think he will play quite bit. I think he's ready.Akeem Bryant from San Francisco: Hey bill how is it going? How do you feel about our use of Kaep in the ground game. In my opinion he is a totally different QB when he looks to take off and run. He looks so timid and afraid of taking a hit, I'm pretty sure we don't want him taking a nice hit and getting hurt as our franchise guy but that opens up everything for us.