"We were better than what we were putting out there, but we dominated in the second half and dominated possession all the way through."
While he was disappointed to see a number of chances go begging in front of goal, Witt was happy his team got over the line.
"The overall display was pretty good, Manukau played better than we expected them to, but I think the better team won," he said.
Northland next face league-leaders Hibiscus Coast at Tikipunga Sports Park on Sunday at 1pm. The northerners gave Hibiscus their only loss of 2019 early in the season and Witt believed his team could win again.
"It'll be a good opportunity for us to see how far we've come or haven't come, whereabouts we are with our development," he said.
"I firmly believe we can win again, the girls just need to have a bit of belief in what they do and how they do it."
In Northland's premier women's football competition, Onerahi beat Central Brown, 3-2, Kamo beat Kaitaia, 9-0, Bay Cosmos beat Tikipunga 2-0, Madhatters Stonehaven beat Bream Bay United 3-1 and Kerikeri Fairview had the bye.