Waarom op dezelfde nagel kloppen een goed idee is

One day, Steve walks into a client's conference room, where
he's supposed to deliver a presentation. He's late.
Everyone is sitting around, waiting.

Steve says nothing. Instead he drops a duffel bag on a
chair. He remains standing. Then, from the bag, he pulls
out a board. The board has 100 nails sticking up. He puts
the board on the table... and then whacks it, hard, with an
aluminum frying pan. He holds up the pan and shows the
bottom. It's full of dents.

Then, still silent, he pulls out another board. This one
has just one nail sticking up. Again, Steve places the
board on the table. Again, he slams down the frying pan.