Randy's race car was repeatedly having mechanical failures. His team had worked with the car for months, fine-tuning the engine and upgrading all faulty components, but it still continued to develop snags. Two weeks before a big race, the owner suggested starting with a new car. The team, to a man, promised to fix the old car and failed, as it went out in the second lap. This incident illustrates the group dynamic of:

Exclamation of commitment

Explanation:

Escalation of commitment can be defined as the way in which a person is having challenges concerning a particular thing due to the difficulty or negative result in resolving it and instead of the person to abandon it, the individual did not relent.

Exclamation of commitment often occur in a situation in which an individual like a particular thing, in which such person continue to invest their money or resources on it despite not giving them positive outcome due to the resource they might have spent on it earlier making it difficult for them to have a change of mind concerning it, in which they might later abandoned it because it was unsuccessful.

Therefore This incident illustrates the group dynamic of: EXCLAMATION OF COMMITMENT

when your a dog and you need a bone.   go and eat a rabbit

answer; beware of exaggerated claims without supporting evidence;