Robin Gosens, Rolando Madrangola and Albert Gudmundsson handed Fiorentina a comfortable home win on Sunday to propel themselves into the race for a top four Serie A finish, which would secure Champions League soccer next term.
Motta, whose team were humiliated with their biggest home defeat since 1967 after being brushed aside 4-0 loss by Atalanta last week, could be told to pack his bags soon.
He was replaced at the post-match press conference by Juve sporting director Cristiano Giuntoli, and with the international break maybe well be replaced in the dugout after the club delve into the slip-ups over the past two league games.
The Bianconeri's performance provoked outrage from pundits and fans online. CBS Sports pundit Matteo Bonetti claimed the players were “not fit to wear the legendary crest of Juventus."
The shuffled defence saw Lloyd Kelly at left-back, Timothy Weah at right-back alongside Pierre Kalulu and Renato Veiga. They were not up to the job inside the hostile atmosphere of the Stadio Artemio Franchi.
Teun Koopmeiners returned to the starting line-up at the expense of Andrea Cambiaso, who limped off after appearing as a second-half substitute. Koopmeiners on the right flank and Nicolas Gonzalez on the left were ineffective throughout.
Fiorentina drew first blood after quarter-of-an-hour and doubled their tally three minutes later, which deflated the visitors.
Danilo Cataldi's corner picked out Gosens, whose header was blocked by Veiga before his volley from 10 yards out beat 'keeper Michele Di Gregorio.
Former Juve stars shine
Two former Juventus alumni came back to haunt the Bianconeri. Moise Kean and Nicolo Fagioli combined well to set up Mandragora, whose low effort whistled into the far bottom corner.
Motta failed to make any half-time changes, despite having not had a shot on target during the opening 45 minutes.
Bonetti hit out at the interval and claimed: “Not one of these players would start for the team in 2010s that won nine consecutive Scudetti. It’s easy to put the blame on Thiago Motta. I’d say 99% of the players have got worse under Thiago Motta.”
After the restart Gonzalez knocked down a cross for Weston McKennie, but his volley was charged down by defender Luca Ranieri.
Fiorentina extended their lead on 54 minutes. Gudmundsson's superb solo run was polished off on the edge of the area with a thumper that went through Veiga’s legs and into the bottom left corner.
Veiga was fortunate that four minutes later his error, which allowed Kean to rob possession and fire past Di Gregorio, saw the strike ruled out for offside.
Gosens' goal-line clearance on 68 minutes, denying Koopmeiners, was the closest that Juve came to reducing the arrears.
Motta finally introduced a forward, but this was with four minutes remaining when Samuel Mbangula came on for Cambiaso who appeared to aggravate his recent ankle injury.
Juventus looked languid and out of ideas throughout the game. This is a team who have given up and it’s hard to see how Motta can salvage the season. The club returns to action when Genoa visit the Allianz Stadium on 29 March.