Guido has just tweeted a rumour that Corbyn is to appoint Green Party MP Caroline Lucas to the DECC portfolio. If true, that should go down like a lead balloon with ambitious Labour party backbenchers.
I assume it's not true though.
Indeed, it was a bit unlikely wasn't it? The dear leader has filled the DECC shadow role with Lisa Nandy, an MP with little or no previous interest in the subjects of energy or climate.