Sousa eager to bring in new players
Sousa says he has a Christmas wish-list but is happy with his current squad if he cannot sign new faces in January.
Rangers visit Charlton on Boxing Day hoping to climb into the Championship play-off positions.
Sousa told BBC London 94.9: "I know already what we need to increase our quality as a team.
"The club knows what I want, if we get them it's good for us. If we don't, for me, we have enough."
Rangers are just a point off the play-offs going into Friday's match at the Valley but have struggled away from home this season.
Charlton, meanwhile, are joint bottom of the table but Sousa says he is not underestimating his London rivals.
He added: "I said after my first game here against Charlton it is one of the best teams playing football and I hope they start to win but after they play us."
