Chesterfield's goalkeeping coach Mark Crossley has revealed the club are resigned to losing top scorer Craig Davies this summer.
The Wales international notched 25 goals last season to fire the Spireites to the League Two title.
However, with the highly-rated striker out of contract, Crossley expects the 25-year-old to be playing in the Championship next season.
"We are resigned to losing him this summer because we originally signed him on a one-year contract to get us out of League Two and he has done just that," Crossley told skysports.com.
"There have been rumours of Championship clubs looking at him and we simply can't compete with them.
"There would obviously be a contract there for him if he did want to stay, but when you look at the clubs linked with him then they would probably offer him treble what we can offer."
Top 10 target
Having wrapped up the League Two title in emphatic style, Crossley insists that they do not expect to be fighting to avoid relegation in the third-tier next season.
He added: "I've seen loads of games this season from both League Two, League One and the Championship and to be honest there isn't a great amount of difference between the top 10 in League Two and the bottom 10 in League One.
"Once you look at the top half of the table then things change, but Bournemouth have done exceptionally well this season, but Notts County only just managed to survive, so it will be difficult to make the step up.
"However, we've got a good team already and we are still hoping to strengthen further this summer, so I can't see any reason why we can't compete in League One next season.
"We would be disappointed if we don't finish in the top 10 next season and that is the aim so that we can push on the season after.
"We got some great crowds in the new stadium this season and we've already sold 5,000 season tickets for next year, which is great, so everything is geared towards kicking on."