Question: Who was the coach who left for Milan the same year that the first golden goal scorer was topscorer for Udinese Calcio?

Context paragraphs:
2009–10 Udinese Calcio season: The 2009–10 Udinese Calcio season was the club's 15th consecutive and 30th overall season in Serie A.  The team competed in Serie A, finishing 15th, and in the Coppa Italia, reaching the semi-finals.  The highlight of Udinese's season was captain Antonio Di Natale's excellent campaign, as he finished top scorer in Serie A, or "capocannoniere", with 29 goals.

1996–97 Udinese Calcio season: Udinese Calcio had its best season since the days of Zico in the club during the 1980s.  With goal scoring trio Oliver Bierhoff, Márcio Amoroso and Paolo Poggi on top form, Udinese finished fifth, even troubling the top three in the standings.  Bierhoff and Poggi scored 13 goals each, while Amoroso hit the back of the net on 12 occasions.  Despite the sensational results, coach Alberto Zaccheroni remained at the small club, while 1997–98 looked set to become a further improvement for Udinese.

2011–12 Udinese Calcio season: The 2011–12 season was Udinese Calcio's 17th consecutive and 32nd Serie A season.  The club had a successful league season, finishing third in Serie A, but disappointed in the three cup competitions in which it competed.  Udinese were eliminated from the Coppa Italia in the round of 16, and also experienced disappointment in the UEFA Champions League, where it was eliminated in the play-off round and thus failed to make its first appearance in the group stage since the 2005–06 season.  As a result, Udinese dropped down to the UEFA Europa League, where it successfully advanced from both the group stage and the round of 32, only to be eliminated in the round of 16.  Club captain and legend Antonio Di Natale was once again the team's top scorer, with 23 goals in Serie A and 29 in total.

Oliver Bierhoff: Oliver Bierhoff (] ; born 1 May 1968) is a retired German former footballer who scored the first golden goal in the history of major international football, for Germany in the Euro 96 final, a career-defining performance that vaulted him into the international limelight.

Udinese Channel: Udinese Channel is a subscription-based channel, entirely dedicated to the Italian football team Udinese Calcio.  The channel offers Udinese Calcio fans exclusive interviews with players and staff, full matches, including replays of all Serie A, Coppa Italia, and UEFA Cup games, in addition to vintage matches, footballing news, and other themed programming.

Pietro Paolo Virdis: Antonio Pietro Paolo Virdis (born 26 June 1957) is an Italian football manager and former player, who played as a forward.  Throughout his career, he played for Nuorese, before playing in Serie A with Cagliari Calcio, Juventus F.C., Udinese Calcio, and A.C. Milan; he ended his career with Lecce.  Known for his eye for goal, with Juventus, he won two league titles and a Coppa Italia; with Milan, he was the league's top-scorer in 1987, also winning a league title and the Supercoppa Italiana in 1988, and was part of the club's European Cup victory in 1989.  At international level, he represented the Italy under-23 side at the 1988 Summer Olympics, helping the team to a fourth-place finish.

1997–98 Udinese Calcio season: Udinese Calcio sensationally finished third in Serie A, much due to Oliver Bierhoff being in the form of his life, scoring 27 goals in a league season consisting of just 34 matches.  Bierhoff, coach Alberto Zaccheroni and winger Thomas Helveg all left for Milan at the end of the season, ensuring Udinese had lots of work to do to stay at the level it was.

Atilio García: Atilio Ceferino García Pérez (Junin, Argentina, August 26 1914 - Montevideo, Uruguay, December 12 1973) was an Argentinian born Uruguayan naturalized footballer who played as a forward.  He is the top goal scorer in the history of Uruguayan football with 465 goals scored in official tournaments and the second highest goal scorer in the history of the Uruguayan Football Championship with 208 goals scored in 210 matches, which also converted him in to the top goal scorer of the Uruguayan Championship playing for the same club.  He is also the top scorer in the history of the "clasicos" between Nacional and Peñarol, with 35 goals.  He played for Club Nacional de Football between 1938 and 1951.

2002–03 Udinese Calcio season: Udinese Calcio bounced back from the hugely disappointing 2001–02 Serie A season, in which it only just managed to avoid relegation.  Under new coach Luciano Spalletti, Udinese gathered strength, and was a constant feature on the top half of the league table.  Even though the squad lacked the goalscoring punch, the defence led by Néstor Sensini and surprising goalkeeper Morgan De Sanctis held it together to such a degree it finished sixth in the league.  Also Czech signing Marek Jankulovski impressed, the Napoli signing switching form left-wing to left back, causing interest from several bigger clubs.  In the offence, Udinese's most influential player was David Pizarro, who scored seven times from the midfield and grabbed the attention from Lazio, who tried to sign him and teammate Martin Jørgensen immediately after the season had finished.  Undisclosed Lazio players refused moving to Udine as compensation for the transfers, and both stayed on, much to the relief of Spalletti.

1998–99 Udinese Calcio season: Udinese Calcio only faded a little bit compared to its club record-breaking 1997–98 season, in which it finished third in Serie A.  With topscorer Oliver Bierhoff, midfielder Thomas Helveg and coach Alberto Zaccheroni all departing for Milan, Udinese was looking to be on the back foot prior to the start of the season.

Supporting paragraphs: 1998–99 Udinese Calcio season Oliver Bierhoff
Answer: Alberto Zaccheroni