Carlos Carvalhal insists Sheffield Wednesday are only looking to do a small amount of business during the window as they close in on their first new addition.
Wednesday are expected to confirm the signing of midfielder Mark Davies after agreeing a fee with troubled Bolton Wanderers.
The Owls missed out on forward Nick Blackman earlier this week and have been linked with Brentford’s Alan Judge.
And they are also understood to be keen to add a centre half to their ranks during January.
But head coach Carvalhal says any business done this month will be about evolution rather than revolution.
“If we do something in the transfer window, it will be little,” he said.
“We are not talking about a revolution.
“We are happy with most of the positions we have.
“It is the little things we need.”
Wednesday’s successful bid for 27-year-old Davies is believed to be in the region of £750,000.
Should the signing be confirmed before noon today, he would be eligible to feature in this afternoon’s FA Cup tie with Fulham at Hillsborough.
Championship leaders Middlesbrough have also shown an interest in Bolton’s longest-serving senior player and had a reported £500,000 rejected by the Lancashire club.