"Smalley bowled really well," he said of the fifth seamer, Bevan Small, coming off a lengthy injury lay-off for his first domestic appearance this summer.
The Manawatu player took 1-18 off his four overs, including the vital wicket of ND captain Daniel Flynn.
In a nutshell, match captain George Worker didn't roll up his sleeves for left-arm spin while import Mitchell Claydon found some traction with his medium pacers to claim 3-44.
Said Claydon: "It's a tough place to bowl ... and it was our best bowling performance in the campaign so far."
In reply, the hosts chased down the total with 158-2 with 17 balls to spare.
Sri Lanka import batsman Mahela Jayawardene again showed why he is a cool customer, posting the highest individual T20 score this summer (97 runs of 59 balls, including 17 boundaries and two sixes).
"Having Mahela helps a lot. George was giving him singles and he was hitting them all over the park," said Claydon after fellow opening batsman Worker scored a shade more than a run-a-ball 39.
"We had flown in a wicket prepared from Sri Lanka so that Mahela could be represented," the jovial Australian-born, England-based import said.
Malan said Jayawardene's permanent class with another game-defining knock gave CD the licence to play a specialist seamer.
Left-hander Worker also delivered as captain.
"He's learned a lot from Krugs," Malan said, emphasising Van Wyk's captaincy in the previous six games also should be noted.
"The team isn't about one guy but all 16 of us and we got the formula right today."
From a coaching perspective, Malan is finding consistency before CD host the Wellington Firebirds at McLean Park, Napier, on Friday from 7.10pm in a televised game.
Claydon said: "All the games [with the final outing against the Canterbury Kings in Christchurch] are semifinals so it's not a bad way to play and today we got that start."
CD are fifth on the table but fancy their chances of making the cut.