Feb. 8 (Bloomberg Law) -- Legal process outsourcers (LPOs) and other alternative legal service providers are beginning to take the bread-and-butter of large law firms -- handling whole mergers and acquisitions, not just the due diligence aspects of deals, according to law firm consultant Kent Zimmermann of the Zeughauser Group. For smaller deals, clients are finding "they don't need perfect, they need good enough," and are increasingly willing to hire LPOs rather than higher-cost traditional firms, he says. On some deals, clients are "adding insult to injury," asking their traditional outside counsel to supervise the work of LPOs, he says. Major U.S. firms are scrambling to deal with the new competitors. Zimmermann talks with Bloomberg Law's Lee Pacchia.