Text: And although we were proud of our collective past, many of us had serious doubts as to whether the delivery system that we had created, and that had performed well for us and for our clients for the past twenty years, was the most effective and efficient delivery system for the difficult and challenging times ahead.
Entailment: We are proud of our past but we worried about the delivery system we'd created.
Contradiction: We are deeply ashamed of the past.