The Problem: The mail carrier for Route 5 has idle time in the Monroe post office and mail is not being delivered to the customers in a timely or consistent manner.

We are planning to improve the delivery process.

The undesirable effects of the process are:

• Inconsistent mail delivery.
• Mail is not being delivered in an efficient or timely manner.

Analysis finds that the root cause of the undesirable effects is:

• The mail carrier reports to the Monroe post office before all mail has been sorted.