Entities mentioned:
- Ruben Amorim: Self-preservation, Professional pride, Determination
- Manchester United: Legacy, Pride, Competitive spirit
- Grimsby Town: Competitive spirit, Recognition, Pride

Article Assessment:
Credibility Score: 75/100
Bias Rating: 50/100 (Center)
Sentiment Score: 30/100
Authoritarianism Risk: 20/100 (Strongly Democratic)

Bias Analysis:
The article presents a balanced view of the situation, quoting Amorim directly and providing context for Manchester United's performance. It doesn't appear to take sides or editorialize, maintaining a neutral stance in reporting the facts and statements.

Key metric: Sports Team Performance

As a social scientist, I analyze that this article highlights the intense pressure and scrutiny faced by managers of high-profile sports teams, particularly when performance falls short of expectations. The repeated poor results of Manchester United under Amorim's management have led to increased media attention and criticism, potentially affecting team morale and public perception. This situation demonstrates the volatile nature of sports management and the impact of results on job security. The manager's emotional responses and public statements further complicate the situation, potentially influencing team dynamics and stakeholder confidence.