19 October 2012 6:44am

Most documents travel between Bank of Queensland offices by fax, courier and mail, the bank's chief executive, Stewart Grimshaw, told an investor briefing yesterday by way of illustrating the investment spend facing the group.

One challenge for Grimshaw's team in allocating the required spending is that his management team has set itself some stretch targets on profitability that will make long term investment in business needs harder to fund.

These targets are:

-- lifting the return on tangible equity to around 10 per cent in 2013, rising to 13 per cent by...