Guido hears the Spectator’s managing editor Will Heaven is leaving for wonk world – he’s off to be the new Director of Policy at Policy Exchange this summer. Brainbox Will was the first person to use the phrase “dementia tax“ in an article during the election, so safe to say he has a keener eye for policy than many. Learned his trade under Gove and Truss at the MoJ, it’s a coup for PX to steal him from the Spec, where he will still be writing from time to time. Congratulations…