The Cherries are famed for their expansive approach under manager Eddie Howe, and O'Shea feels that it is a tactic which could play into Sunderland's hands.
The defender is hoping that the anticipated space that their attacking players will get will allow their creativity to shine, as the Black Cats look to pick up their first win of the season.
"Hopefully we’ll be able to upset them on Saturday," he said in the Shields Gazette. “We know it’ll be a good test because they’ve made a very good impact in terms of how they approach the game. They don’t really sit back and settle for a draw.
"They really try to win games, which is how they finished the Championship season; scoring so many goals with that attacking threat. But hopefully we can use that to our advantage too."
Sunderland have started the season poorly, and they currently sit in 19th place in the Premier League table.
The North East outfit found it difficult to score last term, when they narrowly avoided relegation, and that problem seems to have carried over into the new campaign.
However, their latest performance, in a 1-0 defeat to Tottenham Hotspur, was arguably the most positive of their season so far, and it will give them something to build on.
Bournemouth, meanwhile, have made a bright start to their first campaign in the Premier League. Howe's team have already shown their goalscoring qualities, and a 4-3 victory over West Ham United announced their credentials to play at the top level.