The problem with Cummings is that he is a disrupter. His main idea is to take an existing situation, institution or whatever, toss it up in the air and see what comes down when it breaks into pieces. But he doesn't articulate any really clear vision of what is to be achieved by doing that. What is the outcome he is looking for?
This is exemplified by his looking on influencing people to vote to leave the EU more as an intellectual exercise, an experiment in manipulating mass opinion. He had no clear vision of what would happen once the vote went his way, no plan for how the UK could relocate itself in the world order and, frankly, absolutely no idea of how to counter all the problems which leaving the EU would cause. His sole goal was achieving success in the vote.
I think that this conclusion to the Byline Times piece sums him up
The clearest opinion on Cummings’ grasp of science comes from Dr Philip Ball, for 20 years an editor with the premier scientific journal Nature, commenting on Cummings’ recent blog-posted recruitment advert seeking data scientists to work on policy at Downing Street. Ball concludes:
“While to outsiders Cummings’ blog might seem like sheer geeky gobbledygook, the truth is that, for anyone familiar with this field, it reads more like the efforts of a rookie postgrad spouting a breathless stream of buzzwords and random citations, devoid of depth or context, in the hope of convincing his supervisor that he knows his stuff. I mean that as no disrespect to postgrad students, but at least they are not pulling the strings of the prime minister.”
“The sad thing is that, not only could some of these ideas be useful for good governance if imported with care, knowledge and wisdom, but also that there is plenty to be sympathetic towards in the suggestion that government and the civil service are not always the most meritocratic, dynamic, mathematically literate or up to date of public institutions. Yet it’s hard not to conclude that anyone tempted by this weird job advert is precisely the kind of person you wouldn’t want within a million miles of the levers of power and influence.”