Here's what Tim Montgomerie has to say:
"I am delighted to announce that Jonathan Isaby will be joining ConservativeHome. Jonathan was offered the post of co-editor yesterday by Stephan Shakespeare, ConservativeHome's publisher, and he has accepted. 164 applications were received to succeed Samuel Coates, who was recently appointed as a speechwriter to David Cameron. Sam formally ceased to work for ConservativeHome last Saturday. A start date for Jonathan has not yet been fixed.
Jonathan has been writing about politics at The Daily Telegraph for five years, latterly as editor of the paper's Three Line Whip column and a regular contributor to the Three Line Whip blog. Before joining the Telegraph, he was a senior political analyst in the BBC's Westminster newsroom. He also writes a monthly column for GQ magazine and his first book, Boris v Ken: How Boris Johnson Won London, was published in June. Jonathan is a former chairman of the University of York Conservative Association and was on the founding national committee of Conservative Future in 1998-99.