I would imagine it's because these guys live and die by the strength of their contacts. Say what you like but - in purely journalistic terms - as the guy running the show Purslow is a hugely credible* source. That's why Maddock, Winter, Bascombe and the likes have essentially become propagandists for the current regime.
*Of course what he's feeding these journalists is not 'credible', it's bullshit: he knows it, they know it, we know it but it has to be done when you're effectively running a football club through the media. We're about to employ a 'flavour of the month' manager and Broughton's email reply in justification of Benitez's dismissal should tell you all you need to know on that score.