Hearts fans chief Ian Murray insists the Tynecastle club's Premiership return will not spark another wave of reckless spending.
The Jambos have shaken off the painful scars of the Vladimir Romanov years by romping to the Scottish Championship title with seven games to spare.
Under the controversial Russian banker, the club squandered millions of pounds as they lurched towards oblivion.
But less than a year after emerging from the administration nightmare which cost them their place in the top flight, the Gorgie men are now on the up.
However, Edinburgh South MP Murray - who led the Foundation of Hearts fan group and now sits on the Hearts board under chairwoman Ann Budge - has vowed the days of boom and bust are over.
"The club is not going to go out and splash the cash. Without the Foundation of Hearts revenue going into the club right now it would still be running at a loss," he said.
"We have committed to - and Ann has reaffirmed this - that we won't go back to the days of overspending. We will live within our means.
"Robbie and Craig will look to bring in players that will take the club forward again, but that doesn't mean we will just throw money at the team.
"This is a slow-growing process which is part of Ann's three-to-five-year plan.
"The first year has gone really well. If we continue to work well together with the fans, hopefully that will continue."
Hearts were crowned second-tier champions when their Edinburgh rivals Hibernian were beaten 2-0 by Rangers on Sunday.
Robbie Neilson's side have been beaten just once in the league so far.
The former defender, along with director of football Craig Levein, has put a smile back on Jambo faces with his side's stylish and ruthless displays.
But Murray is just glad to have a team to support after fearing Hearts might never escape the financial black hole left by Romanov.
He said: "This is what all the hard work has been for. If you think back 12 months the club wasn't even out of administration.
"The period around April last year was really difficult for us as we tried to persuade the Lithuanian administrators to sell the club to the Foundation and Ann.
"There were many points back in those dark days when we weren't sure if the club would survive.
"We had to go through a number of different stages, from winning preferred creditor status right through to the point where we had to persuade the club's administrators we had the resources to take the club forward.
"Even when Ann came on board we still had to persuade them we could do the deal.
"There were lots and lots of dark days, but we always knew that if we had the help of the supporters we could rescue the club.
"Now here we are having won the Championship at a canter looking forward to our return to the top flight. That is great credit to the supporters who have backed us all the way and put their money in.
"We will enjoy the moment but the main message is that the hard work will continue.
"Robbie Neilson and Craig Levin have done a fantastic job. They couldn't have done any better. They have been very astute in the transfer market, motivated the team and really changed the direction of the club."
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