They have lost five of their last seven in the league and are only six points above safety with two left to play.
"It was a game we had to win and we won, so I'm happy about that", said Pochettino.
"Of course the most important thing for us is to win the three points because it puts us in a very important position in the table".
Alli opened the scoring on 15 when a Keiran Trippier cross was spilled by Watford goalkeeper Orestis Karnezis.
Kane was primed to tap in Son Heung-min's cross but lost his footing at the vital moment, only to get back on his feet and turn home Trippier's centre.
'We created a lot of chances, we are playing in the right way so we are going to score next Saturday, I feel it, we worked very hard and we are going to get a result'.
He has started 29 games in all competitions for Tottenham this season, with the north London side losing only to Juventus, Chelsea, Arsenal, Manchester United, West Ham and Manchester City on his watch.
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According to Josina Anderson of ESPN , Seattle has remained firm on those trade demands heading into the second day of the draft. He also finished fifth in Heisman voting. "He's a nice runner, but they have so many other needs and there are better backs".
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The results should also provide clues on the company's next strategy for its most-important product. That could bring the price close to $700, a level that's proven successful for many years.
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Cahill had previously suffered a slump in form but has been impressive in starting the last four matches for his club side. The 31-year-old last played in their shocking 4-1 loss at Premier League side Watford (February 20).
A pair of first-half saves from captain Lloris prevented Watford from equalising following Alli's opener, Andre Gray and Richarlison denied by the France global.
He then paid tribute to Lloris, who made his return to the side after Michel Vorm was preferred for Spurs' FA Cup campaign, which ended last weekend against Manchester United.
Liverpool travel to Stamford Bridge on Sunday for a match that could have a major bearing on who finishes third, fourth and fifth. We will keep fighting to finish in the top four.
Kane's clinching goal allowed him to close in on Mohamed Salah as the two vie for the Golden Boot, albeit the Liverpool forward remains the clear favourite to end as the league's top scorer.
"You give the most money to a manager, they'll win the league more often than not". "I would like to have played better over the last few games but so would the team". A year ago I got 29 goals so I'd like to beat that but we'll see what happens.