Rotation of audit firms can go against market consensus, with some countries having it while others do not. Italy has introduced mandatory audit firm rotation, but there is no empirical evidence to suggest that this improves audit quality, and in fact, it may contribute to the concentration of market share among a few firms. Moreover, mandatory rotation can have negative consequences for complex industries like oil and gas, extractive firms, or global financial institutions, making auditing more difficult and potentially hampering operations.