Large-Scale Scrum (LeSS)
What is Large-Scale Scrum (LeSS)?
Large-Scale Scrum (LeSS) is a framework for applying Scrum to many teams working on one product, keeping a single Product Owner, a single Product Backlog and one shared Sprint for all teams.
Updated November 2026 · 5 min read
Many scaling frameworks add layers of roles, events and planning on top of agile teams. Large-Scale Scrum takes the opposite view. Its creators argue that adding structure to manage complexity usually creates more complexity, and that the better path is to simplify the organization so that Scrum can work at scale with as little extra process as possible. In LeSS, many teams work as if they were one large Scrum team: they share a single product, a single Product Owner, a single Product Backlog, a single Definition of Done and a single Sprint, and they deliver one integrated product increment together.
LeSS was developed by Craig Larman and Bas Vodde from their work with large product groups beginning in the mid-2000s, and they have described it in several books. Its guiding idea is descaling: simplifying the organization so that less coordination is needed, rather than adding roles to manage complexity. It comes in two forms: LeSS for about two to eight teams, and LeSS Huge for larger groups, which has been used with hundreds of people. LeSS is less widely adopted than SAFe but has strong support among practitioners who favor organizational change over process. For product leaders, Scrum Masters and engineering managers, LeSS offers a minimalist alternative for scaling agile.
Definition of Large-Scale Scrum (LeSS)
Large-Scale Scrum is a scaling framework built on the rules of Scrum, in which multiple feature teams work from one Product Backlog under one Product Owner in a common Sprint, producing one potentially shippable product increment, with additional events and guidance for coordination and organizational design.
It is an alternative to the Scaled Agile Framework (SAFe), builds directly on Scrum and is one of the main frameworks for agile at scale.
Key Principles
More with less. LeSS aims for fewer roles, artifacts and processes, and more responsibility for teams.
Whole-product focus. Teams think about the whole product and customer, not only their own component.
Feature teams. Teams are long-lived and cross-functional, able to deliver complete customer-centric features rather than working on one technical layer.
Systems thinking, lean thinking, empirical process control and continuous improvement toward perfection guide decisions about how the organization changes.
LeSS and LeSS Huge
Basic LeSS suits about two to eight teams. One Product Owner works with all teams, supported by the teams themselves in clarifying requirements.
LeSS Huge applies when there are more than about eight teams. The product is divided into requirement areas, each with an Area Product Owner and its own group of teams, under one overall Product Owner and one Product Backlog.
In both, there is still one product and one Sprint, so all work integrates into a single increment. LeSS also gives guidance on organizational design, such as reducing management layers and removing separate coordination roles that teams can handle themselves.
Importance of LeSS in Delivery and Engineering Operations
LeSS keeps the focus on the customer and the whole product. A single backlog and Product Owner prevent teams from optimizing their own components at the expense of the product.
It reduces coordination overhead. Fewer roles and layers mean fewer handoffs and less management between teams and customers.
It also drives organizational change. LeSS asks organizations to restructure around feature teams and remove unnecessary roles, addressing root causes rather than adding process. It builds broad product knowledge. Feature teams working across the whole product learn more of the system, which reduces dependence on a few specialists.
LeSS and Financial Management
Fewer coordination roles and layers can lower management overhead compared with heavier frameworks.
Feature teams reduce the waiting and handoffs between component teams, so funded capacity turns into delivered features more directly.
A single prioritized backlog makes it clear what the product group's whole budget is being spent on.
The organizational changes LeSS requires, such as restructuring teams and roles, take time and investment, and benefits may take several quarters to appear.
Common Challenges
LeSS requires significant structural change, such as moving from component teams to feature teams, which can meet resistance from managers and specialists.
A single Product Owner for many teams is a demanding role and depends on teams taking real responsibility for understanding customer needs.
Organizations looking for detailed prescriptions may find LeSS too minimal, since it deliberately leaves many decisions to the teams. Technical practices matter a great deal. Without continuous integration and automated testing, many teams cannot integrate their work into one increment every Sprint.
How to Adopt LeSS
Adopting LeSS involves defining the product broadly, forming feature teams, establishing one backlog and Product Owner, adopting the LeSS events and changing the surrounding organization.
Its creators recommend adopting it deeply in one product group rather than spreading it thinly across the organization.
Setting Up
Define the product from the customer's point of view, which is often broader than existing product or component boundaries. A broader definition reduces the number of teams and backlogs that must be coordinated.
Form long-lived, cross-functional feature teams that can deliver end-to-end features, and appoint one Product Owner. Expect the move to feature teams to take time, since people will need to learn parts of the system they have not worked on before.
Create one Product Backlog and one Definition of Done shared by all teams. Invest in continuous integration and test automation early, since one shared increment depends on teams integrating constantly.
Running LeSS
Hold Sprint Planning in two parts: a shared first part where teams choose items, and a second part where each team plans its own work.
Coordinate through informal communication, shared refinement sessions and practices such as a Scrum of Scrums where useful.
Hold a joint Sprint Review with stakeholders and an overall retrospective focused on improving the whole system. Have teams join product backlog refinement directly with users and stakeholders, so knowledge does not depend on the Product Owner alone.
Examples of LeSS in Practice
The examples below show LeSS in practice.
Both use illustrative figures. The first replaces component teams, and the second simplifies product ownership.
In each, simplifying the structure improved delivery.
Replacing Component Teams
A telecom software group has 6 component teams, and a typical feature needs work from 4 of them, taking an average of three months.
Adopting LeSS, the group reorganizes into 6 feature teams that each can work across the whole product.
Within a year, average feature delivery time falls to five weeks, and handoffs between teams drop sharply.
Simplifying Product Ownership
A product group of five teams has five product owners with separate backlogs, and priorities often conflict.
Under LeSS, one Product Owner manages a single backlog, with teams clarifying details directly with users.
Stakeholders report clearer priorities, and the group delivers the top-ranked features first instead of each team's own favorites.
Conclusion
Large-Scale Scrum is a framework for scaling Scrum to many teams working on one product, with one Product Owner, one Product Backlog and one shared Sprint. It comes in two forms, LeSS for up to about eight teams and LeSS Huge for larger groups.
In delivery and engineering operations, LeSS keeps the focus on the whole product, reduces coordination overhead and drives organizational change. Defining the product broadly, forming feature teams, keeping one backlog and Definition of Done and changing the surrounding organization help groups adopt it successfully.
Related terms
Scaled Agile Framework (SAFe)
A framework for running agile across many teams, programs and portfolios.
Scrum
An agile framework of short Sprints, three roles and regular inspection.
Agile at Scale
Applying agile across many teams so large groups can still move fast.
Scrum of Scrums
A short meeting where team representatives coordinate across Scrum teams.