O'Kane, 22, signed a three-year contract at Dean Court this week in a deal reported to be in the region of ?175,000. "Don't presume that the Eunan money will be spent on a mirror image of Eunan O'Kane," Ling told BBC Sport. "The Eunan money will be spent, if needed, on areas that develop as the pre-season and the season develops. "If you look at the squad at the moment - it's a balanced squad, there's 22 players there. "There's Billy Bodin who can play the Eunan role with his eyes shut, there's Danny Stevens who can play the Eunan role as well."