The humiliating performance in the Champions League followed by the EPL title loss to their neighbors last season had sent the Manchester City owner Mansour bin Zayed bin Sultan Al Nahyan - not to be confused with multiple individuals - in a tizzy.
By picking up just three points in its group last season, City delivered the worst campaign by an English team in the history of the Champions League. Their dismal show also led to the sacking of their manager Roberto Mancini - who led the Blues to their first Premier League title in 2012 after 44 years.
Not just the manager, City's Abu Dhabi-based owner was so desperate to put an end to the crisis that he went on a shopping spree to secure the signatures of some of the high-impact players if not the world-class stars in the sport. The idea was to ensure that Manuel Pellegrini - the successor of Mancini at City - was equipped with enough fire power to turn the luck around for the Manchester club.
So did it work out? With the looks of it, City undoubtedly appeared threatening on paper after splurging nearly 100 million pounds in the off season. But, while their recent shopping spree strengthened their striking abilities, the team's defense was thoroughly exposed.
City have leaked five goals in Premier League and another three in Champions League so far. No wonder, the club is missing their recent signing - Martin Ischemic - who is out with a knee injury.
Despite their defensive problems, City stunned their title rivals 4-1 to clinch the Manchester derby. It was a proud moment for Manuel Pellegrini's men as they finally announced their arrival in the race for the Premier League title.
But, no one would have anticipated what was in store to City ahead. The 2012 EPL champions, who were on cloud nine post Man Utd thrashing, were brought back to earth by Aston Villa as the Villans romped to a stunning 3-2 win at home.
The frustrating defence was yet again at the heart of Manchester City's problems as they prepared themselves for the explosive Bavarians in the Champions League tie. It was undoubtedly the biggest match for Manuel Pellegrini at City as he readied his squad to take on his tormentor Pep Guardiola - who is filling in the big shoes of Jupp Heynckes at Bayern Munich.
Though the statistics favoured the former Barcelona manager against the Chilean, City was still expected to put up a good show in front of the home crowd against the defending champions. It was a match that could very well have restored City's reputation in Europe and Pellegrini was aware of it.
But, the skeletons crawled back out from the closet once again for Manchester City as they witnessed a humiliating 3-1 defeat at the hands of the Bavarians on Thursday.
It was a footballing exhibition, kicked off by Franck Ribery in the seventh minute - courtesy Joe Hart's yet another goalkeeping error. It was followed by Thomas Mueller and Arjen Robben goals to inflict more punishment on the home team.
The Bavarians could have been seven or eight goals ahead by the time substitute Alvaro Negredo clinched a 79th-minute consolation goal for bedraggled City, which was run ragged and humiliated in front of its own fans.
Guardiola's men were so dominant that the loss of Jerome Boateng, who was sent off for a harsh tackle on Toure, failed to affect the scoreline or their game play.
If the defensive problems were not enough, City now find themselves in big trouble following goalkeeping errors by England number one - Joe Hart - on one too many occasions now.
Gael Clichy, Matija Nastasic, Vincent Company and Micah Richards - Pellegrini's formidable wall - were made to look ordinary by the Bavarian giants. Guardiola's men were so impressive that City's fans even clapped Bayern's players midway through the second half and applauded the untouchable Robben when he was substituted in the 78th.
It was a sight that no City fan would dare wish to witness. But, luckily for Pellegrini it wasn't a Champions League final and it's still quite early in the tournament for them to make a comeback.
But having said that, Pellegrini finds himself in quite a difficult spot as he needs to decide whether to keep faith in Hart or replace him with Costel Pantilimon for the upcoming matches.