Juventus coach Massimiliano Allegri offered no excuses after defeat to Parma.
Jose Mauri struck the winner for the crisis club.
"I lost my voice almost straight away. We didn't do anything in the second half and deserved the defeat," complained Allegri.
"Changes to the line-up are not an excuse. We kept a low tempo and I don't think we won a single challenge out there. That says it all.
"I hope this can give us a positive shake-up, but we shouldn't need that. It was the chance to stay 14 points clear of Roma and Lazio, but we weren't up to it today.
"Parma played well, while we were slow and risked conceding on three or four counter-attacks. We didn't control the game at all, as even in the first half Parma were dangerous.
"This was the match we had to play with maturity. Even if we couldn't win it, then we certainly shouldn't have lost."