I am not sure about this Juventus going to replace Thiago Motta because now things are taking good changes, and they are having good chance of fighting for title race in last few games situation is completely changed.
11 matches remaining and 6 points difference from leaders Inter Milan man they are still in game top 3 clubs current performance is surely problem for them which can bring more changes in coming rounds and Thiago Motta is doing good job just 1 defeat with 13 draws surely concern but now with the arrival of Kolo Muani their attack is having good depth.
They are surely going to be had good chance of challenging top specially Napoli lost their rhythm and Atlanta is also not consistent which is the problem for them, but Juventus needs to stay on this level which is going to be amazing for end of this season.
Changing the coach now would not be the best decision, because the new coach will change the team, and doing this at the end of the season, when Juventus still has a chance to get closer to the leaders, can cross out even this hope. I admit that Juventus will look for a new coach, but they will do it in the summer in the off-season, after it becomes clear whether he was able to achieve the goals or not, if they do not get into the top 4, he will definitely be fired. And even yesterday's defeat of PSV against Arsenal shows that Juventus should have beaten them, because PSV are clearly not ready to face strong teams.