Actually Juventus would have won the match except for their mistakes which cost them the match. They made several mistakes from the first half to the second and couldn't make up for it before it became late, sasuolo was actually brilliant enough to make use of every of this opportunity that disguised as mistake because they know if they don't make use of the opportunity Juventus was not going to let them win.
In their next game against Lecce I'm very optimistic Juventus will not allow that which happened between them and sasuolo repeat itself as they need that win to climb up the table. It was only mistakes that cost them that game which I'm sure to a great extent Juventus will not make such mistakes again as they will improve to make sure they win.
The last game Lecce played was against Genoa where they won by one goal (1-0) the did well in that match but I still don't see them matching up with Juventus except they will only try to make it not a very easy win for Juventus but they will be at disadvantage as Juventus is hosting so the will definitely have that home advantage and would not want to suffer a second loss at home.
If same error occurs again in their next match against Lecce then I'll know that the team is not in good shape to challenge for the title this season and still needs to strengthen several areas of their squad depth, but I think they're the preferred to win the game and a second consecutive lose is not an option for them.