Essentially we're saying they need to have more sophisticated management over this very large sum of unpaid taxes. The people doing the collection need to have much better information available to them. They need to use more risk approaches earlier in identifying the accounts that are likely to be lost, and start the procedures earlier. They also have to have better information.
For example, we note in here that the tax debt is growing faster than total taxes, but the agency can't explain why. There is a very large component that is due to self-employed individuals. Why is this population not paying taxes more rapidly, and are there measures they should be taking?
Finally, they have various tax collection systems and practices. They need to evaluate which of those are working well in what cases, so when they have an account they can target better where it should be going.