Having won the Barclays Premier League in such amazing circumstances last year, City have returned to earth with a bump this term.
Saturday's shock FA Cup final defeat to Wigan proved to be the final straw for the City hierarchy, who last night called time on Mancini's three-and-a-half-year reign at the Etihad Stadium.
The Italian's sacking meant former assistant Kidd took charge of Tuesday's clash with Reading - a match City won 2-0 courtesy of strikes by Sergio Aguero and Edin Dzeko.
It may have looked routine, but Kidd was quick to credit his players after they collected the three points that guaranteed second spot.
"What has gone on in the last 24 hours was a shock to the staff, and before the game I would have just taken the result, to get the three points and take second place," he said.
"It's all credit to the players - they are the ones who have had to put up with stuff off the pitch.
"I am pleased for them because it would have been a travesty if we hadn't finished second.
"I was asked to take charge for two games, and, being a Manchester lad, I couldn't say no. I wouldn't have been able to walk down Market Street if I had.
"You'd have to ask the players how they feel. We appreciate the fans, and they were disappointed, and we were disappointed, on Saturday.
"What you've seen is a combination of a couple of things, but I think it was a relief because it has been a tough 48 hours."
As well as the perfect response to losing Mancini, tonight was a welcome return to winning ways after the disappointment of losing at Wembley.
"To be honest, the three points was the most important thing," Kidd said.
"When you get to this stage of the season it's not about performances, but getting results and it was on my mind that we needed to seal that second spot in the league.
"That's the least we could do, and the staff, the fans and the players did it for the club.
"I was pleased with the way the players acknowledged the fans, but those players really appreciated it.
"There were 1,300 of them at Reading, disappointed after Wembley, but they turned out and you could hear them.
"The players and the backroom staff have been terrific."
As fate would have it, the first match of the post-Mancini era pitted City against a manager that knows a thing or two about losing your job despite recent success.
Having led Southampton from League One to a safe position in the top flight, Nigel Adkins was replaced out of the blue by Mauricio Pochettino in January.
Now Reading boss, replacing the equally hard-done-by Brian McDermott, he knows what Mancini is going through.
"You don't know what goes on at football clubs and it is more prevalent that managers don't get that long now because of the demands and nature of it," Adkins said.
"You can't be fearful and have to believe in the philosophies that you have got.
"I don't know the ins and outs and just concentrate on Reading. You look from afar and don't know what is going on behind the scenes.
"I'm sure there are other managers out there who have won things and still lost their jobs.
"We have to understand that it is football and there are going to be demands. There is high finance involved now. Owners have every right to do what they believe is right for their football club.
"He (Kidd) is a great football man and a great man for Man City and if there are going to be changes there are good people that can pick the reins up."