Roberto Martinez's appointment as Everton manager has come as little shock to most in the world of English football. 

Immediately following Wigan's relegation and David Moyes' departure to Manchester United, the Spaniard had been touted as the man to take over at Goodison Park but it wasn't until Wednesday that it became official and Martinez started the biggest challenge of his career to date.

The former Wigan manager built a good reputation during his time at the DW Stadium and the Latics prolonged stay in the Premier League in recent years can be attributed to the Spaniard's managerial prowess. 

Add to the club's FA Cup triumph in the season just gone and Martinez can leave Wigan with his head held high, despite their relegation.

Martinez's ability to work with a limited budget and get the best out of his players is akin to his predecessor and he will need these skills at club with a limited transfer budget. His free flowing and attractive style of football will be a fresh breath of air on Merseyside.

Martinez was approached by Everton's city rivals, Liverpool, to take over as their manager last summer. However, the Reds opted for Swansea manager, Brendan Rodgers instead and now Martinez will be hoping to show Liverpool what they were missing out on.

Martinez has a tough job on his hands though. David Moyes' tenure at Everton will be a hard act to follow and after 11 years in charge, the Scot's philosophies were firmly engrained at Goodison Park.

The new manager has promised Champions League football to the Everton fans, but that this success would not be immediate. A bold statement to make indeed, considering the calibre of teams above Everton at this time and the added financial backing most of these teams will enjoy, that Everton do not possess.

Martinez's first task will be to hold on to his best players though. If Everton are to lose Marouane Fellaini and Leighton Baines to Manchester United it will be a devastating blow, considering the importance of these two players to the team.

Martinez will struggle to replace players of this calibre and so he must attempt to persuade them to stay. An unenviable task, as the prospect of playing under their former manager at the Premier League champions will be an extremely enticing prospect for Fellaini and Baines.

Martinez penned a four-year deal with Everton and his work now begins to try and bring Everton to the next level. The Spaniard's true managerial skills will be tested over the next season as he attempts to adjust to life with a big club and if he manages to deliver on his promise of Champions League football within the next four years, he will have done an excellent job indeed.

For Martinez to achieve this aim though, there must be financial backing from the Everton board. Bill Kenwright has been notoriously tight with transfer money in recent years and it is testament to David Moyes' ablity as a manager that he managed to keep Everton competitive at the right end of the table, despite these financial constraints. 

Martinez will have to do a similar job if he hopes to maintain Everton's position in the table and if he truly wishes to challenge for Champions League football, investment in the squad will be key.

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