The lesson
Turn expert opinion into a benchmark: ask many practitioners the same two questions and publish every answer next to public comps.
The issue asks "What do you consider GOOD and GREAT retention?" and answers by business type, such as "Consumer social: ~25% is GOOD, ~45% is GREAT". A colour-banded chart summarizes it up top. Category headers then list named expert recommendations, usually followed by public comps, most with source links.
Don't copy the retention topic or the roster of experts. Keep the format: the same questions to everyone, many named answers, public comps with links, and a summary chart people can screenshot.