Analyze the Thomas’s situation
He proved himself to be very talented and intelligent, but he failed to satisfy the expectations of company and his superiors, Davis and Mcdonald. His direct expression for his ideas and his overly confident and arrogant personality made him to be unable meet office politics. His superior, Davis pointed out that he is “truly disappointed with Thomas’s work” and he has concerns with his “attitude and job performance”. Therefore, now he is situation to be receiving a dismissal in his position.

Mistakes 1 (culture, power dependency)
Green violates the group’s norms and regulation.
Norms is a acceptable standards of behaviour within a group that are shared by group members.
It is important because:
• Facilitates group’s survival
• Increase predictability of member’s behaviour
• Decrease embarrassing interpersonal problem for members
• Allows members to express central value of group and clarity what’s distinctive about group’s identity
• It increase solidarity and cohesiveness
His direct expression for his ideas and his overly confident and arrogant personality make him to be unable meet office politics. Green knows his capability and intelligent talent than any other people. Therefore he feels he has a right to express his idea under any circumstances and thinks his actions and choices are always right. More importantly, after his promotion, he admits his legitimate power in the office and thinks his power is equal to the Davis, his boss. Therefore, he shows disrespectful manner to Davis and disobeys Davis’ words.
Evidence: At the Budget Plan meeting, Green expresses his opposition to Davis’ proposal in front of the many other people.
He has aggressive (negative influence) communication style. He expresses feelings, needs, and opinions in a way that denies rights of receiver

He ignores role expectation: how others believe a person should act in a given position in a social unit
Davis expected Green to do the following:
• Keep Davis updated on Green’s meeting- Green failed to keep Davis updated and did not keep an update Outlook calendar
• Davis expected Green to provide back-up data and information when requested, Green did not provide back-up data
• Davis expected Green to approach his work strategically driven by data, Green approached his work via personal selling model and was dismissive of a strategic and data-driven approach
• Davis expected Green to be supportive and respectful of his direction- Green openly disagreed with Davis and frequently does not follow his direction

His actions does not excel the team’s effectiveness
Team is a small number of people committing to a common purpose, performance, goals, and approach for which they hold themselves mutually accountable.
• 1+1+1=5
• Share responsibility for performance
• Interdependence