Depends on what tactic you are using. Defense is rock solid, with chiellini, lichsteiner, bonnucci and de ceglie. Maybe a left defender will help. Midfield is class. Marchisio, Pirlo and Vidal are very good if used properly. Wingers are ok, Krasic is one of the best right wingers in the game. I suggest using Vucinic as a left inside forward and Matri(yes Matri as a poacher up-front). In the first season you cant really sign any world class player so I suggest investing in 3-4 youngsters and expect the summer of 2012 for any poatential bargains.
you could use a better LB than de ceglie in my opinion, i got aly cissokho for my juventus team, would instantly improve your defense.
personally i reccomend selling elia, he isn't a bad player and can be very effective when used right but was just too inconsistent for me, and you can usually get a decent fee when selling him. weiss, griezmann, antonio valencia, angel di maria would all be better options.
But I also agree with the guy above me, the squad is fairly decent to start with and you won't see any good deals for any top players until after the 1st season.
Balzaretti, Boccetti, Astori, Giovinco, Jovetic, Veratti and Poli (Pirlo replacements), Criscito (from Zenit), Cavani, Damiao, Tim Krul (Buffon replacement), Balotelli (very unlikely to join but you can change his hatred fror Juve in the editor) just to name a few
Juve have the best squad and depth in the Serie A. I have just done my first season with Udinese and I finished second with Juve about 12 points ahead. I looked at the squad and tbh I would wait until at least Jan and the following summer to clear out the squad and buy better ones. You should **** the league really mate.
I had a previous save with Juve...and my only signing in the first season was Willian. Played him as a an Inside Forward on the left. Possibly the best buy ive ever made!