Please help me understand this hypothetical situation about whistleblowers.

Hypothetical: Evaluating a Whistleblower Tip Zebra, Inc. ("Zebra") is a domestic concern engaged in the manufacturing and sales of military equipment. A few days ago, Zebra received a tip through its hotline reporting that Allen, Zebra's star sales agent in the United States, regularly bribed foreign military officials. The tip came from JJ, one of Allen's subordinates who has received several negative performance reviews 495 from Allen. JJ has repeatedly expressed dissatisfaction with his job and is rumored to be looking for other employment. After being informed about the tip, Zebra's CCO contacted the CEO to discuss the possibility of conducting an internal investigation. The CEO strongly opposed an investigation, expressing doubt about the veracity of JJ's tip and stating that an investigation would negatively impact the company's performance. 1) What should be the CCO's next steps? 2) Has the CCO acted appropriately in response to JJ's tip