Yesterday at around 7.30, coming out of my local newsagent,  I  had to  pause to avoid an early morning jogger.  In his now trademark black shorts and vest, it was David Cameron, looking fit and moving at a good pace.

This was not, it seemed to me, someone running for the photo opportunity.  There was no entourage. This was someone, like many in high pressure jobs, running to stay fit.  The fitter you are the more energy you have and right now Cameron, and his team, exude more of it than Gordon Brown’s team.  One of the reasons they are more attractive to more people.

In one of the best practice guides on this site, Managing Energy, I look at ways at ‘amplifying’ energy.  One of them reads: “Consider introducing ‘hybrid vigour’, the concept of cross-fertilisation for enhanced performance in breeding.  In teams, changing the mix of people can re-invigorate.”

Could the introduction of Peter Mandelson be an experiment in hybrid vigour?  However much he polarises opinon,  he will undoubtedly bring new energy to the Cabinet, something sorely needed.