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Lloyd Blackman will stay in charge at Ramsgate following the sacking of joint bosses Jim and Danny Ward last week.
First team coach Blackman took over at the helm in Saturday's 4-2 Ryman League Division 1 South win over East Grinstead after the axe fell on the Wards last Thursday.
The parting of the ways ended the duo's third spell at Southwood, having returned to the club in May 2015, after leaving Whitstable.
The club say the decision was taken after a "poor season" with only seven wins in 27 matches, with the victory against Grinstead, the club's first at home since October.
In a statement they said: "The board had genuine concerns this season about a run of poor results from what is a talented squad.
"The budget was increased at the start of the season in the hope of a good cup run, and was reduced after our early exit as agreed.
"We had set realistic points targets to be met by November that were not achieved, culminating in a poor Christmas campaign.
"Having not won any home games since October, and with the club falling into a relegation battle, a change had to be made.
"The existing management team will continue whilst we monitor the situation.
"Jim and Danny have been great servants of Ramsgate and we are grateful to them for their efforts."
Blackman has been with the club for 15 months, following a spell out of the game after leaving Ashford United.
He said: "I got a call on Thursday from chairman Phil Fennell asking me to meet him at a youth team game at Ashford when I was asked to take charge on Saturday.
"The last few days have been an absolute whirlwind and crazy.
"Jim and Danny had put together a great, little squad, but we all know things like this happen in football."