Atalanta gave much-travelled coach Bortolo Mutti the job of trying to steer them out of the Serie A relegation zone on Monday after Antonio Conte quit the Bergamo club last week.
"Atalanta communicate that they have put Lino (Bortolo) Mutti in charge of the first team," the club, who are second from bottom with 13 points from 18 games, said on their website.
The 55-year-old former Napoli and Reggina boss returned to Atalanta after being in charge during the 1998-99 season in Serie B.
He is their third coach of the season. Conte resigned on Thursday after replacing Angelo Gregucci in September following four defeats in the first four league matches of the campaign.
Former Juventus and Italy midfielder Conte led Bari to promotion from Serie B last season but did not stay on at the southern club because of a disagreement over transfer targets.
Atalanta lost 1-0 at Palermo on Sunday under the club's academy coach Valter Bonacina.