Editor’s note: This is the third installment in a series examining the shift in law firm business models and the issues law firms must address to remain competitive in a new age of providing legal services.

Dilworth Paxson, long seen as a very traditional regional law firm, was probably not on anyone’s list of the most innovative law firms just two years ago. But it’s now a place that has an outside board of advisers, an investment fund, and is gutting one of its floors so startups and entrepreneurs can interact. Some of those changes, legal industry observers said, could be elements in the new firm models likely to pop up in the coming years.