You are the manager of a customer service team for an online retail company. One of your top-performing service representatives recently experienced a severe service breakdown with a major customer, resulting in a significant loss of trust and potential revenue. As a manager, you need to devise a comprehensive recovery plan to rebuild the customer's confidence and salvage the business relationship. 

1. Outline the key steps you would take in developing and implementing this recovery plan, considering both short-term and long-term strategies. 
2. Additionally, explain how you would measure the success of the recovery plan and ensure that similar service breakdowns are prevented in the future. (Write your answer concisely)