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The Watermelon Manager: From Fixer to Architect in the Partner Economy
by Matthias Höfelmeyer
Published: 2026
Recommended by Matthias Höfelmeyer
Categories: partnerships
Why should you read it?
Because a partner review can end with every number correct and the wrong decision made. This book helps you see what reassuring dashboards can hide: who actually created value, what the result consumed and whether the business can repeat it. If you manage partners, lead sales or decide where to invest, it gives you better questions to ask before scaling a success - or abandoning a relationship.
What is the book about?
The Watermelon Manager follows Jonas, a Partner Manager who keeps deals moving by solving problems for everyone around him. When he investigates the work behind his company's green dashboards, he discovers very different businesses hidden beneath the same partner labels. Through a fictional enterprise-software story, the book explores how to move from rescuing individual deals to designing a partner business with clear contributions, responsibilities and reasons for both sides to invest.
Best takeaway
Before you scale a result, understand what produced it. A revenue number alone cannot tell you whether a partner created valuable access, built repeatable capability or relied on your people to carry the work. Reconstruct one real deal: what each side contributed, what it consumed and why both sides would choose to do it again. Then decide what deserves further investment.
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