Startup Essentials

Inspired

by Marty Cagan

Why do so many products flop?

Marty Cagan worked on products at HP, Netscape and eBay before advising tech companies. In Inspired he asks why so many teams ship features customers don't want, and what the best product companies do differently when they decide what to build.

What you'll learn

  • Two inconvenient truths
  • Discovery and delivery
  • Four big risks
  • Prototypes do the testing
  • Missionaries, not mercenaries

The key ideas in Inspired

Two inconvenient truths

Cagan starts from two facts most companies ignore. At least half of our product ideas won't work. And the ones that do usually need several rounds of changes before they deliver what we hoped. Nobody, the boss included, can tell in advance which ideas are which.

Discovery and delivery

A product team does two jobs side by side. Discovery works out what to build, by testing ideas quickly with real users. Delivery builds it properly, so it's reliable enough to sell and support. Cagan argues that most companies skimp on discovery and pour their effort into delivery.

Four big risks

Cagan's teams tackle four risks before building. Value risk is whether customers will buy it or choose to use it. Usability risk is whether they can work out how. Feasibility risk is whether engineers can build it. Business viability risk is whether it works for the rest of the business.

Prototypes do the testing

Cagan's main discovery tool is the prototype, anything from a clickable mock-up to a small live-data test. It takes days, and costs a fraction of building the real thing. Strong teams, he says, test many ideas a week this way and drop the ones that fail.

Missionaries, not mercenaries

Cagan borrows the investor John Doerr's line about wanting teams of missionaries rather than mercenaries. Mercenaries build whatever they're told. Missionaries care about the customer's problem, and they're trusted to work out how to solve it.

Lines worth underlining

  1. Most ideas fail

    Expect at least half your ideas to fail. The good ones still need several tries.

  2. Discovery

    Find out what's worth building before your engineers build it.

  3. Four risks

    Test four risks early. People must want it and be able to use it, and you must be able to build and sell it.

  4. Prototypes

    Test ideas with cheap prototypes in days, instead of shipping them over months.

  5. Engineers

    Bring engineers in from the start. They often see the best solution.

One thing to try

Prototype it first

Pick one feature your team plans to build next. Before anyone writes code, mock it up in an afternoon and show it to five real users. Watch where they get stuck, and ask for something real, like signing up for early access, to see if they value it.

There's more to Inspired

Knotd has the key ideas from 250+ non-fiction books, each in a few minutes, in plain words. Inspired comes with a Your Move story to make it stick.

Get the whole book on KnotdOpen in the app

Questions about Inspired

What is Inspired about?

Why do so many products flop? Marty Cagan worked on products at HP, Netscape and eBay before advising tech companies. In Inspired he asks why so many teams ship features customers don't want, and what the best product companies do differently when they decide what to build.

What are the key ideas in Inspired?

Two inconvenient truths; Discovery and delivery; Four big risks; Prototypes do the testing; Missionaries, not mercenaries.

What's one thing to try from Inspired?

Pick one feature your team plans to build next. Before anyone writes code, mock it up in an afternoon and show it to five real users. Watch where they get stuck, and ask for something real, like signing up for early access, to see if they value it.

Is Inspired on Knotd?

Yes. Knotd has the key ideas from Inspired in a few minutes, in plain words, plus a Your Move story to test them. It's one of 250+ non-fiction books in the app.