This is not very convincing. He starts off by saying that the "traditional" model where the data scientists do the thinking while the engineers do the doing is unsuccessful because the engineers need to get invested in other people's ideas, need to maintain them and get blamed if they fail while the data scientists get all the praise. So he suggests replacing this with a new model where the engineers work horizontally aka in the shadows, have to be "Tony Stark tailors" and get out of the way while the data scientists get to be Tony Stark. Which is basically the same thing.