Derek McInnes refused to be drawn on links with a move for Scotland midfielder Lewis Ferguson but indicated "there's still more work to do" after Rangers made five signings this summer.
Lawrence Shankland was recruited from Hearts before McInnes was appointed Rangers manager and Ben Godfrey, Ross McCrorie, Dan Neil and Ivor Pandur have arrived since.
McInnes has been credited with an interest in bringing Bologna captain Ferguson, whom he worked with Aberdeen, to Ibrox.
"All I want to do is bring players of a high level, technical level, and ability to play for Rangers," he told Sky Sports.
"Obviously, there are a number of players that have been linked with us that do possess that, so I think it would be wrong for me to speak about any player individually.