 A February 28, 1994 article in The American Banker described how a team approach "enabled Westamerica to consolidate in just 60 days" the operations of the acquired Napa Valley Bancorp.and noted that Westamerica retained 95 percent of Napa Valley's existing business.Westamerica's "expense reduction campaign" and "strict cost control" were cited in the Dain Bosworth July 18, 1995 research report as major factors that contributed to the bank's improved earnings and return on investment in the 1990s.