The Black Cats made a number of signings over the summer, including Adam Johnson, top-scorer Steven Fletcher and the loan acqusition of Danny Rose.
And O'Shea believes that a consistent run of matches without too many distractions will help the new players gel with the squad and find their best form.
|5/1||Sunderland are 5/1 with Bet365 to win to nil against Stoke City
"Now over the next few weeks, fingers crossed, with a few bodies coming back as well, we will be able to go on a stronger run than we have been doing.
"We have not been losing games - obviously we lost against [Manchester] City but we should have more wins on the board than what we have."
The Irish international also spoke of the importance of getting Sunderland's key attacking players – the likes of Stephane Sessegnon, Johnson and James McClean – involved in the game a little more.
He added: "We have to try to find some other ways either of getting them into the game a little bit more. That's very obvious, what we have to try to do.
"When you are a confidence player and you are trying a few things and they don't come off for you, it takes a really strong character to go and try to do that again the next time around.
"But I have got confidence in the players and I feel we are capable of doing that."