Can you list and measure all of the indicators related to the problem?
Which of the indicators are most directly related to the problem? Can you use the indicators to measure problem severity?
Can you determine how often or at what intervals to measure the problem (hourly, shift, daily, weekly, monthly)?
If there are no changes to the indicators after taking action, can you determine what to do? Will you need to take cause, action and verification measures?
Do all indicators reflect conclusive resolution?
Has the team prioritized the customer / user evaluation after implementation?
What scientific methods are being used to verify effectiveness in the short term and to predict the outcome long term?