1.   Despite his success, Gruden faces a challenge in trying to keep his championship team together.

2.   Involving professional services, these two sectors represent particular challenges in managing change.

3.   Scientists and policy makers face unfamiliar challenges in addressing these broader contextual issues in population health.

4.   The challenge in designing and using materials is how to delay the moment of ultimate failure.

5.   The challenge in making an accurate diagnosis begins immediately when the consultant enters the organization.

6.   The challenge in this book is to make the most of human relationships without becoming a victim.

7.   The great challenge in eating blind is conversation.

8.   These patterns evolve over time, as an organization attempts to meet challenge after challenge in the best way it knows how.