Spurs have been highly impressive this season, and they are Leicester City’s nearest rivals in the race for the Premier League title.
Tottenham are currently seven points behind the Foxes, with six games remaining in the league season.
The Lilywhites may find the gap too difficult to breach this campaign, but Souness feels that the future is very bright at White Hart Lane.
“This team should only get better and better,” Souness said. “Who’s to say in the next five years they won’t become the dominant force? The manager could spend the next 10 years at this football club.
“Things are on the up here. Not just because they’re second in the league. This group are giving the supporters what they want to see, and they have a couple of really exceptional talents.”
Tottenham have the youngest squad in the Premier League, and their players are developing rapidly under the stewardship of Mauricio Pochettino.
The Argentine has transformed Spurs from a side which was seemingly going backwards into genuine title contenders in the space of just two seasons.
Spurs are now set to offer Pochettino a new long-term contract (Daily Mail), and they are also set to move into a new stadium soon - which should give them the financial power to compete with Europe’s biggest clubs in the transfer window.