Break it down. The three guys we lost that had a significant impact on the pitch last year were Tevez, Pirlo, and Vidal. Three of our favourites, and basically our three best players over the last 2-4 years. Also shouldn't forget Kingsley, who would have contributed well this season.
While the loss of Andrea in the dressing room (and in my heart) hurts, IMO we were a better team on the pitch when Marchisio was playing DM. We should also remember that despite being a game changer, Vidal was half crocked and not very good for about 2/3rds of the year. Coman had effectively zero impact on the team last year. Asamoah also missed the season, so if he can return to full health, that is absolutely HUGE.
Carlitos is the biggest loss, obviously. Fuck, do I ever miss watching that guy once or twice a week.
Sooo...
Llorente < Mandzukic
Pirlo < Khedira
De Ceglie < Sandro
Ogbonna < Rugani
Matri < Zaza
Coman < Cuadrado
Storari = Neto (probably biased here, love Marco)
Pylon > Hernanes (j/k)
Tevez > Dybala
Vidal > Lemina
Not all of these guys are quite like for like, or direct replacements, but just to be quick/dirty/general about it.
IMO, there's more quality spread throughout the lineup now. The rough start was down to the injury crisis in midfield, 10 new faces including 4 new attacking players, a shifting tactical setup, and a VERY young core of attackers. Our group also got a slightly late start on training, because the team played in the CL final.
Having Carlitos alone probably would have helped prevent such an atrocious start, because despite not playing very well, the team was also unlucky and profligate in front of net. Carlitos makes his own damn luck, and is deadly in front of goal.
Anyway, if one also considers that so many of our youngsters are improving on an upwards trajectory, I think you can certainly make the argument that there's more talent on the team now than there was last year.
However, the group is young, needs time to gel as a group, strengthen their mentality, and to understand the Juventus way -- so they can realize their potential. Continuity will be key in the short term, but I actually think that this team can still win the league, and you gotta love that CL start!