Swedish striker Bjorn Runstrom and former Leyton Orient defender Gabriel Zakuani have both signed.
Coleman expects these two to be starts of the future with Fulham FC.
"Bjorn Runstrom joins us for training this week," he told the club's official website.
"Gabriel Zakuani played the second half against Exeter on Saturday and was outstanding. But we haven't necessarily bought these two players for this season.
"They're going to make a difference for us and will undoubtedly add to our squad because they are good, young players.
"We're trying to build the squad with a mixture of youth and experience.
"We've got some good, young players now and once Gabriel and Bjorn have picked up a bit of experience, they will really shine.
"But hopefully that's not where it's going to end in terms of new signings.
"We're still looking for a couple of other players with more experience and if we can do that, a top 10 finish is possible."