Chief football writer at the Herald Sun Mark Robinson has told SEN North Melbourne has been the clear off-field winner during the post-season following a raft of big announcements.

“North Melbourne are really, really geeing up their off-field departments. What good clubs do is they identify areas where they think they have got a weakness," Robinson said on Monday.

"I would think that Leigh Tudor is a really, really good assistant coach and it’s been said to me that he’s really good on the defensive aspects of footy, people would say that North Melbourne this year failed in areas to defend at different times in the game,” he said.

The Roos also announced the addition of Geoff Walsh, Leigh Tudor, Gavin Brown, Ben Dyer and John Donehue.

“If they win the premiership in the next few years, this is part of the building blocks and people might say that securing Leigh Tudor was a major step into us winning the flag.

“I think North Melbourne’s off-field this year is, right now, far better than what they’re doing on field. They’re trying to secure Nick Dal Santo, but they’re going to lose Luke Delaney. I think North Melbourne right now are clearly winners off the field,” he said.

Robinson also said Tudor and Brown would help solidify North’s defense.

“We saw them be a terrific offensive team, we saw them defend really, really well at times but then we saw them at times get goals kicked against them in a row and we saw them in the last ten minutes of game really struggling to close out games.

“It’s keeping an awareness of what to do and Brad has spoken about that a lot of times and that’s what they’re working on. To get Tudor and Brown together, they can add to that,” he said.