A team is implementing a system that uses a 'best-of-N' approach to generate high-quality summaries of news articles. They are debating two different methods for generating the initial set of 'N' candidate summaries: beam search and stochastic sampling (e.g., using a non-zero temperature). Analyze the trade-offs between these two methods specifically for this task. In your analysis, consider the likely characteristics of the candidate sets produced by each method and how these characteristics might impact the final selection process.