Manager Ally McCoist insists he will not walk away from Rangers following a shock 3-2 loss at Alloa Athletic.
The part-time Wasps stormed back from two goals down with just 17 minutes remaining to set up a Petrofac Training Cup final with Livingston.
McCoist hit out at his players' lack of professionalism but insists he will not give in to fans questioning his future.
Asked if he was considering resignation, he said: "No, I'm too concentrated on the game here."
He added: "My decision is to look at the performance tonight, particularly after we went 2-0 up, then sit down with the boys and go through it.
"It won't be a pleasant meeting but it has to be done and it will be done."
McCoist became Rangers' 13th manager when he replaced Walter Smith in 2011.
The 52-year-old former Gers striker led the club to the consecutive promotions to the second flight, but they are nine points off leaders Hearts this season.
Rangers appeared to be cruising to victory at Alloa when Dean Shiels added to Kenny Miller's 49th-minute opener.
|Alloa manager Barry Smith|
|"I don't look into a lot of facts, but it's great to be the first Alloa manager to beat Rangers."|
But Alloa claimed their first-ever victory over their Championship rivals with Greig Spence's double either side of Ryan McCord's leveller.
And the jeers from visiting fans drowned out the home side's wild celebrations.
"I share their disappointment," said McCoist. "They are entitled to a few choice comments. But there is a long way to go in the season and we will fight tooth and nail to get the club back to where we belong."
Alloa had already drawn twice with Rangers in the league this season.
"We got what we deserved," said McCoist. "We took our eye of the ball and lost some really sloppy goals.
"It is not as if we didn't know what to expect. But the real disappointing thing is that after being 2-0 up we couldn't see the game out.
"I didn't say an awful lot after the game - I will save that for the next few days.
"I'm not sure if there was a lack of character but there was certainly a lack of professionalism to see the game out from a great position.
"We switched off at a couple of crosses. We lost men at attacks, we turned our back on set-plays. They were allowed to take a quick throw for the second. It's about professionalism - taking responsibility to do your job."
Alloa's victory was all the more surprising given illness and injury had ruled out nine senior players. And manager Barry Smith could not have been prouder of his team.
"It's a massive achievement for the club, the players and myself," he said.
"I thought we were excellent in the first half but to come from 2-0 down to win 3-2 was exceptional. It shows great character. They gave me everything.
"I don't look into a lot of facts, but it's great to be the first Alloa manager to beat Rangers."