The Most Important Role in Your Design Org: Team Lead
This was originally written 16 Oct 2018. Lightly revised 1 June 2025.
Discussions of design leadership tend to look upward, toward the executives and directors who sit atop the organization. And while those folks are indeed important, their efforts overshadow what I've realized is the most impactful role in a design organization: the "lower-middle management" of the Design Team Lead.
Defining Team Lead
To make sure we have a common understanding, let me illustrate. Here's a design organization close to 50 people, lead by a VP, who in turn has Design Directors (DD) reporting to her, and they in turn each have three Team Leads (TL) reporting to them.

A Team Lead is, well, just that: the leader of a specific design team. In this model, each design team has 4-7 team members, spans a range of skills (strategy, research, content, interaction design, visual design, prototyping), and works cross-functionally across a contiguous chunk of the experience, illustrated here in a generic e-commerce example:

There are 5 squads dedicated to different aspects of the e-commerce experience. Each squad has a Product Manager (PM) and some usually around 6 to 8 Engineers (E). Instead of designers embedded in squads, they work across a range of squads (we explain that in Chapter 4 of the book). The Team Lead does double duty as both a leader, peering with a Director of Product (DP), and a Director of Engineering (DE), and working with a squad (here Search/Browse).