Rose has been on the books of Tottenham since 2007 and has established himself as a key player in the current Spurs team.
The 27-year-old England international left-back is one of the best players in his position in the Premier League.
The former Leeds United prospect has been linked with moves away from Spurs in the summer transfer window, with The Times crediting Chelsea and Manchester United with interest in the defender.
Spurs manager Pochettino, though, has suggested that Rose, who is injured at the moment, will not leave the North London outfit this summer.
“You know 25 per cent means one of four,” Mourinho told TEAMtalk when asked about whether the full-back position was an area he was happy with or looking to strengthen.
“We got a central defender that can play in many other positions, which is important. Victor can play right-back and can play central midfield. We got a central midfielder, we got a striker.
“Obviously the 25 per cent would be a player for another position, playing from the sides. But we have players and if we cannot strengthen the team in these areas, we have people that we can trust and we go for it.”