Spurs won the match against hosts Wigan Athletic 2-1, but Redknapp believes that the winning scoreline should have been more emphatic.
"We could have been four up during the first half because we completely controlled the game," Redknapp told Sky Sports News.
"But we got sloppy in the second half and gave the ball away.
"We gave away a terrible goal trying to be to clever. Sometimes you've just got to kick it clear."
The victory has lifted Spurs up to sixth in the Premier League table.