If Malcolm Turnbull wants policy reforms that make the economy more innovative and agile, he should think long and hard before accepting advice from the economists in Treasury and the accountants in the department of Finance.

If you want innovation and agility, the last people to whom you should look for help are the two professions that, in their approach to problems new or old, demonstrate minimal innovation or mental agility.

I wouldn't want to call them insane, but they certainly recommend the same solutions over and over, while expecting different results.

The trouble with both professions is that their expertise is so narrow: they know a lot about just one aspect of the problem and little about all the other aspects, which they tend to ignore - while failing to warn their clients to match their advice against the advice of experts in other areas.