The disappointment among supporters of Mancini's axe was soon apparent across social media and internet forums.
Kevin Parker, general secretary of the Manchester City Supporters Club, told the Telegraph: "I think it seems clear - whilst they might not be happy with what's happened on the field - there are other bits and pieces off the field that we as fans don't get to know about.
"This reference to an 'holistic approach', there is probably a message in there somewhere.
"I think they are looking for peace, harmony and happiness in the camp. That would suggest that under Roberto that isn't the case.
"We all hear rumours and hear stories about it not being a particularly happy camp.
"But as fans our interest is a successful football team, success and trophies, and under Roberto that is what we got.
"Of course we are disappointed we have not won a trophy this season but in the eyes of City fans, that is not failure.
"When you have waited as long as we have for trophies, then the three Roberto has brought in three years are certainly keeping us happy."