#4 Walter Mazzarri
Walter Mazzarri worked in the Premier League last season, but got sacked by Watford only one season into his three-year contract. A run of six consecutive defeats at the end of the season was the reason for it. Even though he ended up delivering what was demanded of him - Premier League survival.
We shouldn't read too much into the Watford firing though as the Hornets have now switched bosses in four consecutive seasons. Overall, they have had nine different managers since Malky MacKay's second spell at the club ended in 2011.
The 56-year-old Mazzarri made a name for himself at Napoli. The club had started its second season back in the Serie A when Mazzari was appointed in October 2009. He molded a struggling team into a TOP 6 side that won the Italian Cup in 2012 by beating Juventus 2-0. It was the only loss Juve suffered that season in all competitions.
Mazzarri also delivered Napoli their first ever place in the Champions League and a 2nd place finish in 2012/13, which was the clubs best result in over 20 years. He ended up leaving after the very successful season.
Before taking over at Watford, a short and disappointing stint at Inter left a stain on Mazzarri's resume, but his success in Italy also includes a cup final in 2009 with Sampdoria. Only a penalty shootout loss to Lazio denied the club its first trophy in 25 years.
Mazzarri is well respected in Italy and shouldn't be without a job for long. Especially considering how often teams there tend to change their managers.
His time in England came to a disappointing end, but during that year, there were some outstanding results, like beating Manchester United and Arsenal. Not every manager can do that while in charge of a small team, can they?