Scott confirmed at Friday night's Syd Barker Medal count that North would trade Gibson on Monday, with Hawthorn the defender's preferred destination.
In a stirring address to a crowd of 600, Scott said Gibson had replied 'no' when he asked him if he desperately wanted to be part of North in 2010.
Harvey said the situation was disappointing but that the club would move on quick enough.
"Since I've been at the footy club, I reckon he's the second person we've had who wanted to leave," Harvey said of Gibson. "Daniel Motlop was the other one.
"Obviously he's got his own reasons – if they're personal reasons or whatever, I don't want to buy into that – but as Brad said tonight, if someone's not 100 per cent committed to North Melbourne footy club, they can go.
"That's fine by us. We'll bring someone else in to take his spot who wants to play for us 100 per cent.
"Good luck to Gibbo, but I reckon he's left a bloody good club."
North used the function to pay tribute to retirees Adam Simpson and Shannon Watt, as well as Daniel Harris and Sam Power, who will be delisted if they can't be traded next week.
With the club's looming move into its new Arden Street facility and the ever-changing face of its list, Harvey said there was much to look forward to.
"Unfortunately you lose some players, but you gain some other players as well in the draft," he said. "Hopefully we can pick up a couple of players who can play senior footy and you never know what's around the corner.
"I am that excited about this young side. You look at our best and fairest; Andrew Swallow wins it with Scott Thompson coming second. That's pretty good stuff."
Harvey added that hearing Scott speak so passionately about his plans for the club had struck a chord with the players.
Scott drew rapturous applause when he noted he was the first non-North Melbourne person to coach the club in 20 years yet felt humbled and honoured to now call himself one.
"I think the crowd needed to hear it but you can tell he doesn't just throw it around," Harvey said. "He's straight down the line.
"The message he delivered tonight was spot-on. It was fantastic.
"The kind of bloke he is, the way he played his footy and the way he's going to coach [suggests] the direction he's going to take this footy club."
Keeping Darren Crocker on as Scott's senior assistant coach was another huge coup for the club, Harvey said.
