Westpac's commercial banking division, Business Financial Services, will pursue growth through sales of wealth management products and cashflow management services.Group executive Peter Hanlon announced the new strategy at a briefing yesterday, saying the division had successfully dealt with problems that arose a couple of years ago and was ready to move into a new growth phase.Westpac's commercial banking operation had a poor year in 2005, when cash earnings grew by only about five per cent and loans grew at half the rate of system growth. Changes that were made as a result of that performance ultimately resulted in Business Financial Services being broken out of the consumer banking division and constituted as a separate division.Hanlon said the group now had its Pinnacle loan processing system running properly. Loan origination is now running a little ahead of system (Business Financial Services looks after businesses with sales of up to $100 million).The group increased cash earnings by 11 per cent in the March half and contributed 28 per cent of the bank's total cash earnings.Hanlon said the group had also worked through a number of staffing and distribution issues.Now it is turning its attention to cashflow management and wealth. The group would like to emulate the success of the consumer bank in being a strong distribution platform for superannuation funds and other BT products. Business Financial Services has a team of wealth management staff dedicated to dealing with business customers.The general manager of business banking Alastair Walsh said the group's bankers were "debt junkies" and had ignored the cashflow needs of their clients.  He said: "Not every client needs a loan but they all need to collect money, make payments and do their books."Hanlon believes there is a big cross-sell opportunity. The average number of products per Business Financial Services customer is three but more than 50 per cent of the group's customers have only one product.