Fuller guided AFC Fylde to promotion from Vodkat First Division last season.
The final day of the Vodkat League on Saturday sees AFC Fylde go head-to-head with New Mills in a game that will decide the Premier Division title.
A win for AFC Fylde will see them pip the Derbyshire side to the championship on goal difference and gain promotion to the Unibond League.
"It's extremely clear cut what we need to do," Fylde manager Mick Fuller told BBC Radio Lancashire.
"If the players perform the way we know they can then that's all we can ask."
It is only 12 months since Fylde, then known as Kirkham & Wesham, beat Lowestoft in the FA Vase final at Wembley.
And despite that being the highest honour available for clubs at their level, Fuller believes winning promotion on Saturday will be a bigger achievement.
We're 18 points clear of third place so normally we'd have been celebrating five or six games ago
AFC Fylde president David Haythornthwaite
"Looking at it in perspective it's probably a bigger game for the football club.
"Without any disrespect to that trophy because it was a fabulous day, but to go down to the last game, it's another cup final."
President David Haythornthwaite, however, said the club will bounce back if they fail to gain top spot.
"You have to think about those possibilities but come Monday we'll all have a smile on our face and we'll think about next season.
"We originally gave ourselves two years to get out of this league and I think even if we stayed in this league we wouldn't face a team again who've done what New Mills have.
"We're 18 points clear of third place so normally we'd have been celebrating five or six games ago."
Also in the Premier Division, Bacup Borough bring the curtain down on their league campaign when they entertain Newcastle Town.
In the First Division, there's a promotion party at the Arbories where newly-promoted Padiham will be looking to end their successful league campaign on a high note against Stone Dominoes.
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