Commonwealth Bank is the recruiting ground of choice for National Australia Bank, with two more senior executives in the payments or "working capital services" division of the bank deciding to jump to National Australia Bank.Peter Roeleven and Steve Aliferis both quit CBA on Thursday and are headed for NAB. Roeleven was CBA's general manager for merchant acquiring, while Aliferis was the bank's general manager of product sales within working capital services. The pair reported to CBA's head of working capital services, Leslie Martin, and reported to Martin's predecessor Bruce Munro before that.Murno quit CBA two months ago to take up the slot as general manager of NAB's transaction and custody services, including all National's merchant acquiring business in Australia.