In collective or many case research, several cases are meticulously picked. This gives the benefit of enabling comparisons being created across several cases and/or replication. Deciding on a "usual" case could help the results to get generalised to concept (i.e. analytical generalisation) or to test concept by replicating the findings https://dominickeeavs.blue-blogs.com/37850089/everything-about-hbr-case-study-analysis