Scrum Values
The Scrum Guide lists 5 values that are required to make scrum work.
The way that Scrum events, artifacts, and roles are executed are meant to depend on these values.
Regular recognition of these values being embodied can build trust throughout the team.
Highlighting, discussing, addressing, and redirecting folks who might seem like they are missing out on these values can keep the team lean and remove impediments to Scrum being fully embraced.
Commitment
The scrum master, dev team, and product owner commit to one another and the stakeholders that goals will be achieved.
Focus
Scrum works when the team is only working on the work items that have been committed to during sprint planning.
Openness
The work at hand, the roadblocks, the successes and failures are communicated and shared through events and documents for all to see.
Respect
Members of the team share respect for one another as "capable, independent people".
Courage
Scrum depends on the team and it's members addressing the most important topics regardless of difficulty, complexity, miscalculated judgments, individual pride, or precedent. "The Scrum Team members have the courage to do the right thing, to work on tough problems."