Those at risk include a creative pair who have worked at the agency for many years.
The move is part of a re-engineering of the creative department after the arrival of the executive creative director, Mick Mahoney, in late 2013. New creative hires are expected to follow.
Mahoney joined RKCR/Y&R from Havas Worldwide London, where he held the same role, at the end of 2013. He replaced Toby Talbot, who returned to New Zealand in 2012 after just one year in the position.
No-one at RKCR/Y&R was available to comment on the process.