JSK are on a run of four straight defeats with the last two in particular coming in disappointing fashion.
Last time out, Joburg had the Pretoria capitals 7-5 before letting them reach 143-6, a total they fell 21 runs short of chasing in an agonising defeat.
With one game of the league phase left to play against third-place Paarl Royals, JSK are fifth in the standings on 17 points, two behind Durban Super Giants.
A win against Paarl will see them through and Fleming says all it takes is one big performance from one of their stars to ensure their passage.
"We've still got a shot so I think we've had a pretty bad week to be fair, a little bit of rain around but now we've still got a shot at making the semi-finals so that there's the positive aspect to it so my role will be a little bit of reflection," he told IOL.
"There's a bit of emotion in the rooms, naturally losing a game like that, but very quickly we'll get on the plane and it'll be about the opportunity that presents.
"The worst thing would be if this was the last game we played and then we will disperse with a horrible feeling so at least we've got an opportunity to give it a crack."
"We might not be at full strength but someone's got to be a hero and there's someone in that room, might be a youngster, might be a senior player that will have the opportunity to do that so we'll get excited about that.
"But I won't rush that, it'll be a long plane trip down to Cape Town and then probably a little meeting tomorrow night but we've been pretty consistent throughout with our messaging and what we're trying to do, it'll just be a case of delivering on the day."