The Five-Function Product Leader: product, marketing, sales, finance, supply chain (from a 13-year Samsung PM)
A product line is a business. Most PM content teaches you to build the product. This teaches you to run the business.I spent 13 years in product management at Samsung, most recently as a senior director, across supply chain, set-top boxes for cable and satellite operators, consumer IoT and smart home hardware, and the ProAV display category.Here's what I learned early: a PM is expected to own the entire business. And here's what almost no PM content prepares you for: the business is decided by five functions, and most of them don't report to you.Marketing doesn't report to you. Sales doesn't report to you. Neither do finance or supply chain. But when any of them fails your product, the failure lands in YOUR product review. You don't get to decide most of it, but every bit of it lands on your bottom line.This document is the operating knowledge for that job. Five functions, each covered the same way: Where product leaders fail in that function (the failure mode, not a textbook definition) The fluency bar: what you must actually be able to do, specifically Operator questions: three questions to ask about your own product this week. If you can't answer them, you found your gap. How it connects to the other four functions The five functions: Product at the leader altitude: portfolio allocation and the kill decision, not feature craft Marketing: positioning as a product decision wearing marketing's clothes, and launch as a synchronization problem Sales: comp plans design rep behavior, channel margin stacking decides what gets sold, and how to tell a market signal from one rep's commission problem Finance: your product's COMPLETE P&L, including the program dollars (MDF, co-op, rebates, promo) that quietly put healthy-looking products underwater. Running one product's full P&L is how you get handed a category. Supply chain: the function PM content pretends doesn't exist, and the one that kills launches. Lead times, MOQs, E&O risk, and why forecasting is "pretending there's math in magic" Plus: a walkthrough of one launch decision through all five functions, a 1-to-5 self-assessment with defined anchors per function, and a 90-day plan to close your weakest gap (sit with the function, build one artifact yourself, make one live decision with it).Every function includes a real story from my Samsung years. The touch kiosk we kept alive years too long because one committed partner looked like a market. The consumer-brand marketing instinct that kept skipping sales enablement. The ProAV lesson that integrator margins beat feature lists. What hardware forecasting actually is when you strip away the spreadsheet theater.Who it's for: senior PMs stepping into leadership, PMs who own (or want to own) a P&L, hardware and enterprise PMs who've noticed the software-PM playbook doesn't cover their job. Software PMs: don't skip the supply chain function. Your version of it is cloud cost, vendor dependency, and committed capacity, and the discipline transfers directly.What it's not: discovery frameworks, agile rituals, roadmap templates, or interview prep. It assumes you can do the PM craft and teaches you the business around it.8 pages, Word format. Dense on purpose; there's no filler to skim past.Questions before buying? Message me. I answer.FAQ sectionI'm a software PM. Is this relevant? Yes, with one translation: the supply chain function maps to your cloud costs, vendor dependencies, and committed capacity. The other four functions apply directly. The document includes the mapping.Is this a course or a template? Neither. It's a knowledge document: the operating model, the fluency bars, the questions, and the stories. Read it in 40 minutes, then use the operator questions and 90-day plan against your own product.Why should I trust this over the usual PM content? Fair question. It comes from 13 years running hardware product lines at Samsung, where supply chain and channel economics decide outcomes. Every function includes a real story of getting it wrong or learning it the hard way, with my name on it.Do you offer refunds? Yes, 7 days, no questions.MEDPICC Scorecard referenced here: https://kwonster74.gumroad.com/l/smlxxr
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