TThe Diary of a CEO
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Leadership

T-Shaped Leadership Model

Pair deep expertise with broad cross-functional connection

Difficulty
Advanced
Time to result
~months to results
Steps
4
Confidence
99%

Snap's T-shaped leadership model combines a vertical stem of deep expertise with a horizontal bar of broad business understanding and human connection. Spiegel argues that modern work is too interconnected for expertise to remain isolated: leaders must apply what they know across product, engineering, design, legal, finance, and other functions. At the same time, breadth without depth can produce middle managers who know a little about many areas but cannot help solve a difficult problem or develop a specialist. The development sequence differs by starting point. A strong specialist can broaden through curiosity and engagement outside a comfort zone; a pure generalist must first build a substantive skill base. The desired output is trusted expertise that travels across organizational boundaries.

Origin

Extracted from The Diary of a CEO

Core principles

  • 01Depth creates the ability to solve hard problems and earn trust
  • 02Breadth connects specialist knowledge to the wider business
  • 03General coordination cannot replace a useful area of expertise

How to run it

  1. 1

    Establish the stem

    Identify and deepen an area of expertise that lets the leader contribute directly to difficult work.

    Pro tip Test depth through the problems they can help others solve.

    Watch out Status or management tenure is not the same as expertise.

  2. 2

    Map the horizontal work

    List the functions, stakeholders, and perspectives that the expertise must connect with to create impact.

  3. 3

    Build cross-functional curiosity

    Engage people outside the specialty, learn their constraints, and ask how they interpret the same problem.

    Pro tip Start beyond the leader's normal comfort zone.

    Watch out Breadth should not dilute the expertise that makes the leader useful.

  4. 4

    Translate and connect

    Express specialist knowledge in ways that other functions can use and combine it with their input.

In the wild

Design meets engineering

Spiegel describes working with co-founder Bobby Murphy on interactions such as tapping for a photo and holding for video. Design intent and engineering constraints had to be understood together for the product interaction to work.

Depth in different disciplines combined through a shared appreciation of the wider product.

Common mistakes

Promoting the empty generalist

Breadth without a deep contribution can leave a manager unable to solve problems or inspire specialist teams.

Keeping expertise in a silo

Technical depth creates limited organizational impact when the leader cannot connect it to other functions.

Is it for you?

Best for

It is best for selecting and developing leaders in complex organizations where specialist work crosses many functions.

Not ideal for

It is not a demand that every individual become expert in every discipline.

From the transcript

You have a real depth of experience, a depth of expertise in a given area and then a real breadth of understanding of the business…

Evan Spiegel · 53:30

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