The strategy briefing by Commonwealth Bank's chief executive, Ian Narev, held last Thursday, detailed what the bank would be doing more of over coming years, with an emphasis on domestic franchises and technology.One question at the briefing (from Chris Williams of UBS) yielded an answer about what the bank's strategic review ruled out."We have excluded in retail banking a strategy which is reliant heavily on product innovation," Narev said. "We have excluded in domestic retail a strategy which is built around differentiation of a whole lot of different brands. We have excluded, primarily in business institutional banking, strategies which are designed on the back of a significant increase in risk appetite up the risk curve. "And, in terms of international… [it's] very much what we have been doing; a bit more in some areas, not much more. "The process that we went through to get here was...  we had a new head of strategy who had been living out of Australia for his whole life, and the mandate that he got from day one on the job was re-open all the opportunities in the world and... [then to] narrow them back down to a set that we think are the right ones."We absolutely did not narrow the international part of the strategy by constraints that it...  had to be what we're doing today and, therefore, we dismissed a whole lot of things, because we didn't believe we had capability or particular opportunity for knowledge or competitive advantage in the relevant market."Earlier in the presentation, Narev said: "We don't need a lot whole of product innovation, and, in fact, the goal is going to be to significantly simplify the products, rather than to contribute to their proliferation."All our research has told us, and continues to tell us, that the best way to achieve all this domestically is through the Commonwealth Bank group brand, a very strong brand. We don't need other brands."Narev said CBA would "continue" to use the Bankwest brand in Western Australia, as well as the ASB brand in New Zealand.