Challenge: Identify Concurrency Opportunities

Imagine you are developing a Python application that automates data handling for a research team. The application has three main tasks: first, it downloads several large CSV files from different remote servers; second, it processes each downloaded file to clean and transform the data; third, it generates summary statistics and plots from the processed data and saves the results to disk. Each file is independent—downloading one does not depend on another, and processing or analyzing one file does not depend on others.