"When my daughters were young, they, like so many, spent hours in front of video game machines. One of their favourites was called The Mole Hunter."
"A little mole would appear somewhere on the screen. You rushed around the screen and hit the mole with a hammer, and sometimes immediately, sometimes with a little delay, another mole popped up somewhere completely different…. This may sound familiar to anyone who has been engaged in the design and building of institutional frameworks. Each element of a framework can have an impact on the way the others work, sometimes in unexpected ways or in unexpected places."