We sit on the worn gray wooden bench in the sun in front of a concrete work shack and talk.

NPR: Environmentalist John Francis, Walking the Walk

Everybody now knows that concrete blocks do not work in rainy countries.

ECONOMIST: Social housing

He said there was some work being done in the pit by concrete workers at the time, who all escaped safely.

CNN: fire

This is why so many people come in early or work over the weekend when they actually have something concrete to do.

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They poured concrete, lugged bricks and cement and did metal work, with some clad in gloves and construction helmets.

CNN: The story of Yaojin: Rebuilding a quake village

David Bartram head of highways and engineering at Derby City Council said the work had been vital after lumps of concrete up to 9in (22cm) in size had fallen from the Derwent Underpass in December.

BBC: Derby ring road works continue to disrupt traffic

Connecting directly and in-person with customers arms you with concrete stories that you can take back to your team to work on solving real problems.

FORBES: Seven Signs of a Customer-Focused CEO

When asked by me, neither my dad, nor numerous friends and contacts in the working world who similarly attended HBS can offer up concrete examples of knowledge gained there that elevated their work product once graduated.

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