For Pochettino, the rare night out, which followed Tuesday's 1-0 victory over Barnsley in the Carabao Cup, counted as "tactics", and it was just as important as work at Spurs' North London training complex.
West Ham's problems really began on the half hour when Michail Antonio, only recently back from a hamstring operation, pulled up injured.
Pochettino is expected to recall several first team players with the likes of Harry Kane, Christian Eriksen, Hugo Lloris and Toby Alderweireld all set to come back in after being rested in midweek. However, left-back Ben Davies has recovered from an ankle issue and is pushing for a spot in the starting XI.
Tottenham travel to the London Stadium on Saturday to face West Ham, against whom Dier made his debut three years ago and scored the victor in a 1-0 victory. "I think the team is doing fantastic away from home but to win at Wembley is our next challenge".
Harry Kane scored totally nine goals in his last four away games in the Premier League and also he has scored five goals against West Ham in his last five league games. But I think we're strong, I'm so happy with my squad.
And he spoke about how he'd worked hard to reach where he was now in the Premier League.More news: Small North Korea quake likely natural, not nuclear test, experts say
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Kane now has seven goals in six Premier League matches against West Ham and the striker proved the difference again here. It may be bad luck in some of those games, but it is a thing we have been talking about. He said: "For all the excitement and desire they show to beat us, we must show the same". We remember the game in May.
More dropped points at their temporary home during a 0-0 draw with Swansea City last weekend leaves them now five points adrift of the leading Manchester clubs, and that is a gap they can not allow to grow much bigger. "We know very well what it means for our fans to play against West Ham".
In our preview, we are backing Spurs star Dele Alli as our prediction, and he is available at the best odds of 28/17 at Unibet.
The warning signs, though, were there for West Ham in the 24th minute when Aurier was sent clear on the right by Moussa Sissoko.
However, Spurs hung on to claim all three points in the London derby.
A 2-0 win over Huddersfield Town earlier this month handed the Hammers their first points of the season, and they added one more to their tally during a dour goalless draw with West Bromwich Albion last weekend.