Mention what is your approach if you find that the testers in your organization are performing a test on the deliverable even after significant defect have been identified?

As a QA Lead, your approach should be:

• Acceptance criteria should be tightened
• Test cases should be re-evaluated
• More test cases should be added if possible, with equivalence class partition cases and boundary values
• More test cases should be added to check invalid conditions.
• Show Stopper criteria should be modified