Former AC Milan coach Arrigo Sacchi feels Juventus are paying for not strengthening when they were on top.
Juve are battling for consistency this season under coach Max Allegri.
Sacchi said, “Their squad is what nobody has, their players have been in the best teams in the world. However, they made a mistake, the worst possible one: not changing anything while winning.
"An Austrian philosopher used to say: 'if something works, correct it'. Juve is paying for this. It has quality, but it lacks rhythm."
He added: “Before the teams were more tactical, we are going from tactics to strategy, which is what the public wants. Imagine a motorcycle race that goes at most 100 kilometers: nobody would want to look at it."