Bristol City boss Steve Cotterill said mid-table teams will be looking over their shoulders after his side came from behind to leap out of the relegation zone with a 2-1 home win against Carlisle United.
Cotterill saw two half-time substitutes, Marvin Elliott and Wes Burns, transform a lack-lustre team performance, with the former scoring twice in the space of three minutes.
Cotterill said: "There will be teams noticing that Bristol City are out of the bottom four and perhaps we can start to see how others react to being in it.
"It's not easy when you're down there. And it's difficult to turn a game around in that situation, so I thank all of the players for their efforts.
"How much difference the substitutions and change in formation made I will leave others to judge. Certainly, all three subs we used, Marvin Elliott, Wes Burns and Tyrone Barnett, affected the game.
"Now we go into another home game against Coventry on Tuesday with the chance to make further progress.
"Supporters have hopefully gone home smiling and ready to back us again in that match."
Carlisle went in front after 36 minutes when a crude foul by Adam El-Abd on Charni Ekangamene was punished by a sweet low free-kick from Brad Potts that just eluded debutant goalkeeper Simon Moore.
But midfielder Elliott made an immediate impact with some strong challenges and headed City level from Sam Baldock's 68th-minute cross after the visitors had failed to clear a corner.
Another Jay Emmanuel-Thomas corner from the right was allowed to reach Elliott, who volleyed powerfully past Greg Fleming from eight yards in the 70th minute.
Carlisle boss Graham Kavanagh said: "We have to defend set-pieces better. To be undone by two, having played so well was very frustrating.
"We were without striker Lee Miller because his girlfriend has just given birth and we missed his height defending corners.
"There were a lot of good things in the game from our point of view. But Bristol have a lot of quality players, despite their league position, and we knew they would pose a threat.
"We just have to dust ourselves down and go again. I want to strengthen through the emergency loan period and hopefully there is money available to do that."
City were pedestrian and gave the ball away repeatedly in the first half and were lucky in the 12th minute when Michael Drennan intercepted a poor pass from Derrick Williams and lashed a 20-yard shot against the crossbar.