Speaking after his team's nine-point loss to Richmond at Etihad Stadium on Sunday, Scott noted his side had again performed well in some of football’s basic measures - it lead the Tigers in inside 50 entries (58 to 55), clearances (44 to 42), tackling (84 to 67) and contested possessions (157 to 137).
But he said North's strengths in these areas had again failed to get them over the line in a winnable game, with his side's continued reliance on certain players something he could no longer ignore.
"We've clearly got to have a look at our side and we've got to tweak a few things up," Scott said.
"Because the things that are working for us (are) not getting us over the line.
"We're relying on too few. I've shown an enormous amount of faith in this playing group that we've put out in the first month and now we need to have a really good look at it.
"We do have players who are playing some pretty good footy but … we will have a really good look at the reasons why (we are losing).
"A lot of it is skill execution and decision-making and a lot of it is we've got to have a look at the personnel who are up to it at this level right at this moment. Clearly some are not."
Scott said he did not want to speculate on the individual players who may face the axe at the selection table, but indicated he was happy with the performance of his tall forwards Drew Petrie (six goals) and Lachie Hansen (one).
Hansen and Sam Wright were singled out by captain Brent Harvey as two of his side's youngsters that needed to lift after North's loss to Collingwood.
Another player who has struggled for form this year is third-year midfielder Jack Ziebell, who had 10 possessions against the Tigers, while Lindsay Thomas must be testing his coach's patience with his inaccuracy in front of goal - he kicked another three behinds against Richmond.
Scott said he expected his side to come out firing against Port Adelaide on Saturday at Etihad Stadium.
Asked whether he was worried about taking on a Port Adelaide side that was sure to be smarting after becoming the first side to lose to AFL new boys Gold Coast, Scott said: "I’d be disappointed if they were more fired up than we were."
Scott said Harvey had received a knock to his quadriceps muscle that had prevented him from starting on the ground at the opening bounce of the final quarter, but would be fit to take on Port Adelaide.
