So we wanted to help technical founders become CEOs rather than replace them.

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Earlier this week, truck manufacturer Paccar ( PCAR) said its customers are choosing to hold onto aging trucks for a longer period of time, rather than replace them.

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Wardrop also leans on his suppliers to redesign any failed components rather than simply replace them.

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They typically require one-third of the wattage to replace them, rather than only the one-fourth advertised.

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Asked why he chose to replace some GCSEs rather than reform them, Mr Gove said he had wanted "a clean break" and to move to a new system.

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