In this feature, we take an in-depth look at the 23 other teams in Sky Bet League One this season.
League position last season:
6th - Sky Bet League One
2014/15 top goalscorer:
Sam Clucas (12)
Dean Saunders - The 50-year-old took over last month after previous manager Paul Cook departed for Portsmouth after the conclusion of the 2014/15 season.
Saunders' reign at Chesterfield has already been hectic, losing key players such as Gary Roberts and Jimmy Ryan but has bolstered his striking options with the signing of Sylvan Ebanks-Blake.
The former Doncaster Rovers, Wolves and Crawley manager will look to build on the success of Cook who mastered a championship winning campaign to League One in 2014 and a Johnstone's Paint Trophy final in the same season.
Last season, Chesterfield finished 6th in their first campaign back in the English third tier before losing 4-0 on aggregate in the play-offs to eventual winners Preston North End.
As a player, Saunders was a prolific striker, notching 190 goals in over 600 competitive appearances for clubs such as Liverpool, Aston Villa and Galatasaray.
The former Wales international endured relegation for the third time in his managerial career with Crawley Town last season.
The new Spireites manager will look to kick on from the success of previous manager Cook and challenge for the League One promotion places.
Sam Morsy - The 23-year-old is a strong, powerful midfielder who works tireless box to box.
The former Port Vale man won the Player of the Year award in his first season with the club as he played a key part in their promotion to League One in 2014.
After impressing in his opening season, he was handed the captain's armband for the 2014/15 season as he led the side to the Sky Bet League One play-offs.
Morsy's impressive form has seen him linked with several Championship clubs including Cardiff City.
The history books show that Latics have played Chesterfield 66 times in all competitions, winning 29 and losing 21.
In the two fixtures between the two last season, Latics and Chesterfield played out a 1-1 draw at the Proact Stadium after Jonathan Forte's penalty was cancelled out by Sam Clucas' equaliser.
The reverse fixture at SportsDirect.com Park ended goalless.
Sky Bet League One odds:
Win outright: 16/1