Bologna have appointed Davide Ballardini as their coach until the end of the season after dismissing Stefano Pioli on Tuesday night.
Ballardini will bring his own staff -- Carlo Regno, Stefano Melandri, Andrea Rinaldi and Mario Paradisi -- after Pioli's backroom team were also relieved of their duties.
Bologna are currently 17th in Serie A, a point clear of the relegation zone, and Pioli paid the price for a 2-0 defeat to bottom-placed Catania on Monday.
A statement on the club's website said: "In view of the recent disappointing results, the club was forced, with great regret, to relieve the coach of the first team, Stefano Pioli, of his duties."
Pioli was praised for a "not so common dedication to the fortunes of our club" as Bologna gave their "warmest thanks" for the work he had done in just over two years with them.
Ballardini, 50, has a reputation for saving clubs from relegation, having rescued Cagliari and Genoa from precarious situations.
His first game comes at home to Lazio on Saturday.