San Francisco Mayor London Breed joins this week's edition of In Depth, with guest host and KCBS Radio reporter, Jenna Lane.  Mayor Breed's appearance comes after settling in post-election, something Jenna suggested to Mayor Breed could be considered a pretty considerable change for her.  "Yeah, I'm settling in just fine," Mayor Breed told Jenna.  "I have a great team of people who are helping me to implement many of the things that I promised voters I would do.  We are already up and running and I'm most excited about the fact that we are looking at building a modular housing factory to build more housing, " she added.  "San Francisco will be the first customer of this modular housing factory and we are committed to $100 million for affordable housing once this is built."  So much of Breed's emphasis, it seems, has been on the problem of housing supply--or lack thereof.  Most of the money spent as a city goes toward keeping people in their homes, but housing production goals are a target for Breed.  She suggests that identifying underutilized sites is an important part of the process.  Bureaucratic red tape, she adds, is another problem--and one that needs to be overcome.  Breed's goal is to make San Francisco a more affordable place for people who want to live there.  Indeed, housing was one of the many issues Breed addressed on the campaign trail, along with homelessness, transit, public safety are among the many issues she is tackling.  Those issues are addressed this week, on KCBS Radio's In Depth.