Everton are reportedly close to clinching deals for Wigan pair Arouna Kone and Antolin Alcaraz.
Toffees boss Roberto Martinez says he is focusing on making additions to his squad rather than worrying about potential departures, and has targeted two players he worked with at the DW Stadium.
Kone is likely to cost the Toffees around £5m but Alacaraz will arrive on a free transfer once his contract has been finalised.
"They are players that I know really, really well," said Martinez. "I worked with them really closely and they are players that are used to the Premier League and the British game.
"You will always get those sorts of situations but at the moment we are still looking to try to bring the right characters to the football club.
"We need to remember that we have a very strong team at the club, but in the same way we don't want to close the window without feeling stronger than we were when the window opened.
"I'm sure that we will have many other names mentioned and hopefully we are going to get the right characters to represent our football club.
"I think we need to bring in three or four new faces - one per unit (goalkeeper, defence, midfield and striker) and make sure we get an extra option or dimension into the squad.
"It is vital to bring the right characters in and whoever steps into the dressing room comes with the possibility of offering something different and extra."
"It is not a matter of bringing in numbers or bringing in players quickly. The most important aspect is to try to keep the squad together and get every player ready."