The Kangaroos enter Friday night's semi final against Geelong on a five-game winning streak, including three straight wins - and the clubs first finals victory since 2007 - while Harvey has been suspended.
Harvey was the only Kangaroo nominated for this year's 40-man All Australian squad, and the team's critics suggest there is an unhealthy reliance on the 36-year-old.
Scott, however, said his team had proven it can perform without the former skipper, who is "in unbelievable shape" as he prepares to return against the Cats.
"We've won five in a row now and the last three without Harvey," Scott said on Thursday.
"I've heard people say consistently that we're so reliant on Harvey, well we haven't been the last three weeks.
"We've got a lot of players we really rate and not too many others in the competition do just yet, and that's mainly because they haven't been playing on the big stage at this time of year.
"I think you'll see a few players who will enhance their reputations hopefully in the next few weeks."
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Scott also pointed out that critics had said the club was reliant on midfielder Daniel Wells and forward Drew Petrie, but neither had been nominated for the All Australian squad.
Ahead of a light training run on Thursday, the coach ruled out midfielder Leigh Adams (concussion) and defender Lachie Hansen (hip).
Scott was confident Hansen would be available if the Kangaroos progressed to a preliminary final against the Sydney Swans, but there was more concern about Adams.
"He's a really tough, dour competitor and he's copped some knocks in the past," Scott said.
"He's still showing some residual signs of the concussion two weeks ago so we won't take any risks with him ... his health and wellbeing comes first."
Geelong has already declared its selection hand in the ruck with Hamish McIntosh ruled out, leaving versatile big man Mark Blicavs to play a lead role.
Scott said the Kangaroos weren't concerned by suggestions the former steeple-chaser could attempt to run Todd Goldstein off his feet.
"Blicavs is very unique in the way he goes about things, and we saw from the way (Josh) Walker started the game last week he's a really capable player too," Scott said.
"(But) we don't want to get dictated to in the ruck and Goldstein's a very good player.
"Others have tried to run him off his feet and failed, so we'll stick to our guns."
On coaching against his twin bother Chris for the first time in a final, Scott said: "We've been doing this since 2011 and there's a level of professionalism that we both adhere to".
It has also been a big week personally for the North Melbourne coach after wife Penny gave birth to the couple's first child, Fletcher Charles, but Scott said he was now focused on Friday night's clash after "an amazing few days".
"Professional athletes and coaches are very good at putting things on hold for the right time of year," he said.
"October is going to be a great month for us but we've got to focus on the task at hand in September now.
"My wife's been a superstar and she's now allowing me to focus on the task at hand on Friday night."
