Manager Darren Way says Yeovil cannot afford to look beyond Tuesday's FA Cup third-round replay against Carlisle, with Everton awaiting the winner.
That fourth-round tie will be televised, earning the victors £144,000 plus gate receipts and prize money.
"There's a job to be done and we have to concentrate on that job," Way, 36, told BBC Radio Bristol.
"If you do not, then you can be easily misled and they'll be doing exactly the same as us."
Way masterminded Yeovil's 1-0 victory over York on 2 January, his first match as manager after a period in interim charge, although the Glovers are 23rd in League Two after losing 2-1 at Morecambe on Saturday.
The first match against fellow League Two club Carlisle, which was staged at Blackpool's Bloomfield Road ground because of flood damage at Brunton Park, ended in a 2-2 draw.
"They are a good team that look like play-off material," added Way. "I know what we are going to come up against and I'll be explaining the strengths and weaknesses to the players."