Maidstone United joint-managers Alan Walker and Lloyd Hume have resigned.
The duo have overseen the reformed club's rise from Kent League level to their current place in mid-table of the Ryman League Premier Division.
Chairman Paul Bowden-Brown said: "It was with great regret that I have had to accept the resignation of both Alan and Lloyd, after a long conversation both managers felt they had taken the club as far as they could. It is as simple as that.
"It is a sad day, but I have always said, no individual is bigger than the club.
"I would like to place on record my sincere thanks to both managers for the wonderful job they have done over the years in taking our club to this level of football and I wish them every success in the future."
The duo's final game in charge was an abject 2-0 home defeat against Aveley on Saturday which left the Stones 15th and just three points above the relegation zone.
They won the Kent League and Cup double with the Stones in 2005/06 and won Ryman League Division 1 South the following season before keeping the Stones up with a 1-0 win at Folkestone in a relegation-decider on the final day of the 2007/08 season.
The Stones have been plagued by financial concerns this season with Walker, Hume and the players agreeing to defer payment of their wages last month as the Stones faced-up to a series of postponements which saw the income from gate-receipts at their temporary home at Ashford's Homelands ground dry-up.
Mr Bowden-Brown insisted the managers had not been asked to present the idea of further pay deferals to the players, but said he "could not guarantee there won't have to be further cuts in the future."
A meeting between Stones general manager Bill Williams and Mr Bowden-Brown is scheduled for Monday afternoon with appointing a caretaker manager until the end of the season top of the agenda.
It is thought experienced midfielder Jay Saunders could be asked to take on a player-coach role for Tuesday night's home game against Hendon.