In a recent LinkedIn post, Marty Cagan highlights an article he believes is so consequential it could form the basis of a groundbreaking book. Cagan, a prominent figure in product management, shared his thoughts on the piece by Mike Fisher, emphasizing its profound implications, particularly for those leading product teams.
Cagan opens by stating the article’s significant potential:
“Every once in a while, I read an article that is so consequential that I can see it being developed into a groundbreaking book. This is one of those articles.”
He further elaborates on the article’s broad applicability and critical importance for product leaders.
The Missionaries vs. Mercenaries Principle
According to Marty Cagan, the article’s insights are foundational to understanding a key leadership principle: the distinction between teams of “missionaries” and “mercenaries.” This concept, as Cagan points out, is not merely theoretical but has practical implications for team building and effectiveness.
Cagan directly encourages leaders to engage with the material:
“Mike Fisher’s article applies well beyond product, but if you lead product teams, there is probably nothing more important for you to understand. The famous point about ‘needing teams of missionaries over mercenaries’ is derived from this.”
In Cagan’s view, fostering a “missionary” mindset within teams—where individuals are driven by a deep belief in the product’s vision and purpose—is crucial for innovation and success. This contrasts with “mercenary” teams, who may be motivated primarily by external rewards or short-term gains, potentially lacking the intrinsic drive necessary for tackling complex product challenges.
Leadership Imperative
Marty Cagan stresses that understanding the principles discussed in Fisher’s article is not just beneficial but essential for effective leadership. He frames it as a critical area of focus for anyone in a leadership position, especially within the product development sphere.
His concluding remark underscores the urgency and relevance of the article’s message:
“If you’re a leader, please read this:”
Cagan’s endorsement suggests that the article provides actionable insights for cultivating more committed, purpose-driven teams, which are often the hallmark of high-performing product organizations. By drawing attention to this piece, Marty Cagan is guiding his extensive network toward a deeper understanding of team dynamics and leadership effectiveness, reinforcing the idea that strong, mission-aligned teams are key to building successful products.
📝 About This Content
This article is based on insights shared by Marty Cagan on LinkedIn.
📅 Originally posted on May 6, 2026 | View original post on LinkedIn →