[2] After his function at the United States Professional Volleyball League (USPV) in the 2000-01 season, he returned to Italy as coach of Vicenza Volley.

Afterwards, he transferred to Chieri Volley, where he was named in 2004 again the "Coach of the Year" and won the Women's CEV Cup in 2005.

[2][5] Guidetti won the gold medal at the 2013 Club World Championship, coaching Vakıfbank Istanbul.

[6] Between 2015 and 2016, Guidetti coached the Netherlands women's national volleyball team, leading them to silver in the 2015 European championship, bronze in the 2016 Grand Prix, and fourth in the 2016 Summer Olympics.

He left the Dutch squad in late 2016, hoping to live full-time in Istanbul, and took up the coaching job for the Turkish national team.

In his first season, Vakıfbank was good in attacking with some unique players such as Neslihan Demir, Jelena Nikolić, and Angelina Grün but poor in defense.

In 2009–10 season, Vakıfbank improved their volleyball level, but Fenerbahçe Acıbadem won the league title with a big investment.

He was selected to FIVB Coaching Commission after his stable success and re-signed to Turkish side for two more years.