At Swanson, Martin & Bell LLP, Timothy G. Nickels and his colleagues create their own individual business plans. “Business development is not just a couple of people’s responsibility,” said Nickels, the firm’s managing partner since 2006. “It’s everyone’s responsibility.” So the firm’s 114 lawyers must draw up a business plan and update it annually. The lawyers can focus on their respective practice areas, but they also can suggest other practice areas that …