Large-Scale Scrum is not a new form of Scrum; it is a scalable framework for up to 8 teams. Using LeSS requires a fundamental understanding of Scrum and transfers the values, principles and elements of Scrum to more complex organizational structures.
The Challenges of large Projects
Risk of failure increases
More with LeSS
LeSS is used to reduce complexity in large organizations and return focus to the product and its benefit for the user. The basic principle is the same as Scrum: using available resources more effectively.