Settling into life at a higher level is tough enough - but having to do so without a recognised goalkeeper is making Spencer’s task a ‘nightmare’ at the beginning of this season.
The Millers earned promotion to the UCL Premier Division last term, having flown to the Division One title.
But since then, they have lost regular stopper Tom Cooke, who has been fast-tracked in the world of refereeing.
A selection of possible No.1s have come and gone, the last of which decided against joining Spencer a few days before the start of the season.
And that has meant centre-back Curtis Avery has been plunged into goalkeeper duties, starting the first two games of the premier division campaign between the sticks.
He has only conceded two goals during that time, with Spencer drawing 1-1 at home to Harrowby United last Saturday before losing 1-0 at Harborough Town on Tuesday.
But Millers manager Ben Stone is desperate to secure the services of a specialist stopper. “We’re still on the hunt,” Stone said. “We’re in a bit of a mess with the goalkeeping situation.
“It’s the hardest position to fill and we’ve been struggling.
“Curtis has done well but it’s not his natural position so it’s always going to cause problems.
“Fair play to him for going in there but it’s not ideal.”
Spencer will put goalkeeping coach Stuart Lutter in goal for Saturday’s FA Cup extra preliminary round game at Wellingborough Whitworth.
But Lutter, who was not available for the first two league games, will not play in the following Saturday’s league match at Holbeach United.
And Stone said: “It’s just been a nightmare.
“We’ve had people come and then they don’t want to play and we really need to try to get someone in.”
Stone was also hit by the retirement of experienced striker Paul Pickering during the summer.
And the boss said: “We’ve not been able to field the same team as last season, so it has been tough.
“But we can definitely still turn it around.”