I have a problem with cherry-picking of examples in that article. Citing Dembele in the West Brom game is a bit disingenuous, as his partner had just had a baby and he was playing on zero sleep. How did he look against Sunderland? I think that would have been a better comparison. The problem the author identifies is correct though. Pochettino's verticalidad demands very quick forward passes from central midfield, and without them, we don't have a functional attack. We'll see who can deliver them as requested, and if no one does, I expect we'll be finding a couple of people in January who can.