The pressing system can't yield long term success at THFC. It can't even manage it a Liverpool.
Even City at one point looked to wobble.
The difference between City and the rest is they can spend their way out it.
The reasons it can't work at Spurs are many, but here's some
1) It relies on extreme fitness. Once players get to their later 20's they need to be replaced. Kane, Son etc would have to be moved on for younger players who can keep up
2) Because we wouldn't buy ready made players, the ones we bring in would need to be brought up to speed
3 Because of 2, we'll always be in a state of building for the future