Imraan Ladak stood down as chairman in January but resumed the role in April.
Kettering Town chairman Imraan Ladak says there are no signs they will be able to extend their ground lease.
Under Football League rules, the Poppies could not be promoted to the league without their own ground or a 10-year lease at Rockingham Road.
Ladak told BBC Radio Northampton: "We have to be as competitive as we can be, regardless of the ground situation.
"But we wouldn't be spending money on the squad if we didn't think we could sort it out."
Having initially reduced manager Lee Harper's playing budget, funds were made available for the 2010/11 season.
The club hope to continue to play at Rockingham Road, but Ladak is unsure if the current land owner, developer Ben Pickering, will permit them to do so beyond 2013.
"We haven't had any indication that Ben Pickering will extend the lease, and it's difficult because land prices are low currently," said Ladak.
"We haven't got the funds to build a new stadium so it's in Ben's hands.
"If he doesn't do a deal, we will have to play somewhere else."
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