I think he does right to not bother tweeting at all to be honest. The problem with twitter is, it's a platform for people to say what they want without retribution. Regardless of when he tweets, he'd get the same level of stick thrown at him. There's simply no need for it.
He has been found.... he is quoted in this article on the BBC talking about the data-led approach to Football.... https://www.bbc.co.uk/news/business-56164159