Here are some highlights from our San Francisco 49ers' chat, which was held earlier Thursday:Chvu from San Diego: Please help me understand the signing of J. Skelton as how that strengthens the team. The man has repeatedly proven he's not an NFL player, not less QB. Even Jacksonville, Raiders, Jets didn't want him as back up. Thanks.Bill Williamson: I just think they think they can develop him into a decent No. 2. I think it may say a lot about the team's thoughts on Colt McCoy.