Spurs have relied on Lucas and Bergwijn as auxiliary attackers and Mourinho believes the pair will benefit from the change of role in the long-term.
"For Lucas, for Bergwijn, for these wingers to be playing the way that they are playing, and are probably going to play until the end of the season, is going to make them better players when they come to the inside," he said.
"They are players that normally play in the corridor. In this moment, they are learning how to play inside. So I believe they are going to be better wingers in the future because then they can mix their game in the corridor and their game when they come to the central areas. So it is an accumulation of experience.
"It would be easier for us to have Kane, Son and [Moussa] Sissoko plus Lucas, [Erik] Lamela and Bergwijn but I think in the end, we have to see the positive side.
"This is what I call tactical culture. A football player is not just about technical quality or the physical condition. It has a lot to do with tactical culture. Our wingers are going to be better wingers when they go back to their normal position."