It would have no doubt been a pleasure and privilege to have worked with David, even just a bit if you were lucky enough. I was lucky enough as a fellow CODE member and I am ever so grateful. 
His pearls of wisdom and wit were always welcomed by all. He will be a muchly missed person of significance in life and educational leadership but leaves an important and recognised legacy.
So he is not really gone but always with us. Thank you. Rest well, David.