Scrum Team
A small team consisting of one Scrum Master, one Product Owner, and Developers, with no sub-teams or hierarchies.
What it means
The Scrum Guide recommends a Scrum Team of ten or fewer people, small enough to stay nimble and large enough to complete significant work within a Sprint. Larger initiatives use multiple Scrum Teams working from the same Product Backlog.
The entire Scrum Team is accountable for creating a valuable, useful Increment every Sprint; accountabilities are distributed among the three roles but the outcome is a shared responsibility.
Common mistakes
A Scrum Team is cross-functional and self-managing, meaning it has internally all the skills needed to create value and decides internally who does what, when, and how.
Example
A single Scrum Team of eight people, plus a Product Owner and Scrum Master, owns the entire onboarding experience end to end.