Pairing Higuan and Ronaldo upfront doesn't seem to be working for Juventus but still Sarri persists and in the end it will end in tears and he will be sacked.
It's very possible that sarri could be sacked after just one season as juve's boss, his tactics right now isn't just working, and even though they are level on points with inter at the top of the table, they are not playing convincingly as they normally do in the past. Ronaldo seems to be all in the mix of things, I know he is one of the greatest players in footballs history, but most times in games this season, he usually has little or no impact, and the coach finds it difficult to remove him for a different player, his reaction the last time he was substituted caused some issues in the dressing room, Ronaldo must admit to the fact that he is no longer at the level he was 4, 5 seasons back, and learn to support the team even when he is not on the field.
Sarri may not win the champions league, but winning the Italian league again could maybe provide some consolation, but with inter this strong, they could lose both, and that may be the end for Sarri as juve's head coach.