Tristan Lewis will get the Hayes & Yeading job permanently if he keeps United in the Conference South.
That was the promise of Chairman Tony O'Driscoll after he overlooked applications from elsewhere to give his caretaker the job until the end of the season in the wake of Saturday's 2-0 over relegation rival Farnborough.
The result gave Lewis a perfect 2/2 record since taking over the reigns from Phil Babb earlier this month - and the victories have produced two clean sheets to boot.
Eight more tests lie ahead before the end of the season and O'Driscoll pledged should Lewis beat the drop the job will be his to keep - if he wants it that is.
He said: "Tristan has got the job until the end of the season, because I've just asked him if he'll do that and he said yes.
"He's got eight games to show he deserves it permanently and if he keeps us up I think he will have earnt it.
"It is down to him if he wants to do it permanently as well. He hasn't officially applied for it so he may not want to, but he is more than happy to do it until the end of the season."
The first of Lewis' eight remaining tests comes tomorrow night when United entertain rock-bottom Staines at York Road in a 7:45pm kick-off.
He will be supported by Delroy Preddie and Gary MacDonald.