More recently, Sonetti joined Cagliari in November 2005, replacing Davide Ballardini, becoming the fourth coach appointed by the Sardinian team in a couple of months.
[3] However, Sonetti was sacked only a few days later, after a 5–1 loss to Fiorentina, leaving the team last-placed in the league table, being replaced by Davide Ballardini.
[5] On 19 May 2009 he was sacked himself, following a 2–1 loss to promotion rivals Grosseto that left Brescia in fourth placed, but with only a two-point lead to 7th-placed Triestina.
[6] On 28 March 2010, 69-year-old Sonetti returned to management, replacing Rolando Maran as head coach of Serie B relegation battlers Vicenza.
[7] His stint as Vicenza head coach, as he was sacked on 15 April after only three games in charge, ended with respectively two draws and a loss.