I think we have a tendency to forget that Dybala sucked under him.
sucked:
15/16: 46 games, 23 goals, 9 assists
16/17: 48 games, 19 goals, 8 assists
17/18: 46 games, 26 goals, 5 assists
18/19: 42 games, 10 goals, 4 assists
we have a tendency to forget that dybala only sucked one season under allegri. just a raw data: del piero had one single season over 26 goals during his glorious career. also, about last season: both dybala and nedved confirmed that dybala had to change his mentality for this current season. he was simply playing a different role, and he wasn't working hard enough.
dybala under sarri: 36 games, 13 goals, 6 assists. at this rate, considering only his goal/game and assist/game ratios, this could be his 2nd worst season with juve.