Kyle Shanahan will look inside and outside the building for next defensive coordinator

As the 49ers embark on a belated search for a new defensive coordinator, coach Kyle Shanahan says he's casting a wide net.In the press conference announcing the firing of Steve Wilks after only one season, Shanahan was asked whether he'll look for candidates inside or outside the building."We'll do both," Shanahan said. "We've got some good coaches in here. I'm definitely going to look outside also. So there's a number of things I got to do for the interview process. But this wasn't an easy decision so it's something that I had to really put a lot of time into. Now that I had that conversation with Steve this morning, which now that's taken care of and now I'll start working on the interview process and things like that, trying to find who's best for our group."Internal candidates include defensive line coach Kris Kocurek, linebackers coach Johnny Holland, and defensive backs coach Daniel Bullocks."I'm going to talk to all these guys," Shanahan said. "I haven't really talked. I just did this with Steve about an hour ago and haven't got a chance to meet with all these guys. But all of them will have a chance. I'm not going to specify anyone in particular this early. But [Bullocks]...