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Seems fairly lightweight to me as well, but I think that is the point - this is a teaser for content the author intends to expand upon in later posts. So as just an intro, it seems fine. I do hope if they continue to write up this content, they focus more on why this categorization matters and what benefit it offers an organization to conceptualize their teams in one of these ways.

Please write the post where you analyze R&D through these different lenses! I would love to hear more of your thoughts.

In general, unless it's very pre-market and exploratory/academic, research and development almost implies BigCo--and it tends to tilt towards development over time. The obvious exceptions are both pretty rare and last about as long as the company has a bunch of extra money to toss around.