"Through our philosophy of using fully locals in the B competition, Shane Neville was player of the year [last year] so we thought there's still room for him to develop in the game. That's the pathway, and that's good for us.
"The philosophy is the same, play club rugby and you're in with a shot, anyone is up here."
Witcombe reinforced that he and his selectors would be hitting the sidelines of the Bayleys Southern Districts Premier competition in search of locals - particularly props, flankers, midfielders, and outside backs.
While the focus is on picking local talent, Witcombe said they were looking at bringing in a Super Rugby prop.
"We're going to need five props," he said, adding that three have already been locked in.
"[And] we're going to look to pick them from club rugby.
"One exception is we're chasing a Super Rugby tight head at the moment, we feel that it'd be a massive boost if we could secure a Super Rugby prop, we're being upfront and honest about that.
"Anyone we will pick out of the local arena will be way better in our opinion than what we've had here, and again we want to create a good development team as part of the pathway."
Loose forwards were proving a bit of a headache for Witcombe at this early stage of the season, with several contracted flankers carrying injuries.
He said Jack Ram won't be playing until July after having a knee reconstruction last year, Ben Berridge has stress fractures in his hips, and Owen Pihema's shoulder has bad nerve damage.
"It's wide open there and we'll be looking to club rugby."
Giving some life to an otherwise slow moving loose forward stock is the return of Cam Eyre from Scotland.
Witcombe said there was a possibility of contracting up to 35 players.
Northland:
Ross Wright, Justin Davies, WillGriff John, Matt Moulds, Robbie Abel, Tom Murday, Bryce Williams, Shane Neville, Dan Pryor, Jack Ram, Ben Berridge, Owen Pihema, Cam Eyre, Tane Takulua, Dan Hawkins, Latiume Fosita, Viliami Tahitua, Winston Stanley, Warren Dunn, Jone Macalai, Whiria Meltzer, Matt Wright.