Problem: Rewrite in different wordings: "The passage makes a strong case for the risk-based payment model, highlighting the benefits of collaboration and the potential for improved patient outcomes. However, it lacks a detailed explanation of how the risk-based payment model works, which could make it difficult for readers unfamiliar with the concept to fully understand the argument. It also doesn't address potential challenges or drawbacks of this model, such as the risk of providers avoiding high-risk patients to maximize their reimbursement."