"One of the key challenges for my staff is to explore new ways to think about things," he said.

Poor cost recovery remains one of the key challenges in the sector.

Who else has so fully confronted the key challenges of modern times?

So a key challenge is to implement the initiative with limited resources.

So tonight, let me outline four key challenges to be met.

The project aims to provide answers to the key challenges of today's society.

Finally the book addresses the question of the next key challenges for the church.

This is a key challenge that we have to face.

Let me again highlight the key challenges that we are facing.

We will identify the key challenges for the future and set out our response.