The Spurs boss has turned things round for the Londoners, who were lagging in the bottom three at the start of the season.
One player who has been in fine form of late is winger Lennon, whose three goals in the last four league games has promoted talk of a return to the England setup.
But his club manager has taken a swipe at the former setup at White Hart Lane insisting the 21-year-old could be even better if had he been coached properly.
"He has that pace and skill but I don't think he has really been taught how to receive the ball and get the ball," Redknapp said.
"I spoke to him about getting behind people. When he runs behind, even if the ball doesn't come, full-backs are aware and drop off.
"Lots of players haven't been coached over the years, they play and do what they did as kids and then you step up a level. That's why there aren't that many top wingers, you get marked out of the game."
BentleyRedknapp also questioned Spurs' decision to bring in another right winger last summer in the shape of David Bentley.
Bentley arrived from Blackburn last summer in a £17 million deal, but has struggled for consistency his switch and Redknapp added: "They couldn't have fancied Lennon that much to have signed Bentley.
"Why would you sign two wide-right players? Strange, isn't it?"
Lennon's new contract has effectively warned off Liverpool, who were linked with the winger, and Redknapp wants to build a team around players such as Lennon and Luka Modric.
"You have to keep your best players to build a team," he said. "If you start selling your Aaron Lennons then you are back where you were at the start of this season.
"We are in a situation where we are not looking to sell any of our best players this year in the summer."
Italy snubModric has been reported in Italy as a target for Juventus, but Redknapp said: "I wouldn't see why anyone would want to leave the Premier League and play in Serie A, we're way in front of them and there is no comparison."
Redknapp feels players such as Lennon need to look at his own nephew, Chelsea midfielder Frank Lampard, who will be facing Spurs this weekend.
"I don't think I've ever managed a team where he hasn't scored against us," Redknapp said.
"He always scores, always. He has developed into an absolutely fantastic footballer."