The Sprint Retrospective meeting supports the Scrum value of Openness and the principle of inspect and adapt. This rule of Scrum also aligns with the Agile Manifesto principles “at regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly.” In-person attendance of all Scrum Team members allows for the fullest level of openness among Team Members which in turn is necessary to use the Retrospective to find improvements in how the team functions. If even one team member attempts to attend this meeting by any other means, either by phone or even video conferencing, efficiency and effectiveness of the openness and inspect and adapt becomes compromised. Compromise on these principles yields compromised collective ownership of improvement efforts. Lack of in-person participation increases the likelihood that the team will fail to implement improvements because the openness and inspect and adapt will lack effectiveness. This, in turn, hinders the team from reaching a high-performance state.