Spurs managed to beat Arsenal 3-2 at the Emirates Stadium in the Premier League on Sunday.
But Redknapp is looking to bring in new players in January.
“I am looking to bring people in this January,” said Redknapp. “We need to tweak it to finish it off.
“There’s one or two other bits we could do, without spending a fortune, that could make a difference to the team.
“We’ve a new training ground coming, the club’s in good shape and we can go forward.
“Tottenham have got a title in them in the next few years. I genuinely feel that – why shouldn’t I?
“It’s there for someone to pull off a surprise and our win at Arsenal gives us great confidence.”
