Calculating efficiency over a period of time can identify opportunities to reorganize staffing, or add or remove employees based on the company's volume of business, and an individual employee's long-term productivity can factor into merit increases and bonuses.
While trusts avoid probate, they don't avoid taxes. A transfer from a revocable trust will be taxed the same way as a transfer made through a will. Someone who inherits money from a revocable trust receives it tax-free, but the estate might have to pay estate tax on everything that it contains before distributing it.
The grantor of the trust is not personally liable for income taxes on trust income; the tax liability belongs to the trust itself. The variation in income tax brackets also allows you to move assets to a trust that enjoys a lower tax rate. If the irrevocable trust includes a life insurance policy, then the benefits paid to your beneficiaries after your death are not subject to federal income or estate taxes.