Tottenham's defence will face a test on Boxing Day when they face one of the most exciting strikers in the Barclays Premier League in Aston Villa's Benteke.
Villa manager Lambert caught many in the game by surprise earlier this season when he decided to drop club record signing Bent and replace him with the little-known Belgian.
The decision looked unwise at first, with Benteke struggling in his first few matches, but he has come into a rich vein of form in recent weeks.
Benteke missed a sitter during Villa's 2-0 defeat at Tottenham in October, but the Spurs boss is aware of the striker's recent improvement and believes Lambert deserves praise for his management of the situation.
The Tottenham boss said: "He has been outstanding, for sure.
"He has eight goals so far. I think he is surprising everybody. To his credit he has come up strong. He has strong competition from Bent.
"I think Paul Lambert was courageous in his decision to keep on persisting with a player that he got so well in the transfer market so credit to them. But it is good to see him up there."