South Africa, Nov. 9 -- The comments made by Rose referred to pitchless agency appointments, with Rose saying that major account wins are driven by rigorous client evaluations and technological capabilities, rather than relationships between chief executives.

A post shared by Publicis Groupe (@publicisgroupe)

In an open letter to WPP chief Cindy Rose, Publicis defends its recent account wins, challenges her remarks, and takes a swipe at WPP's exit from the Coca-Cola media pitch.

In the post entitled, titled "Dear Cindy", the French network says. At the same time, it has always enjoyed "a bit of industry back and forth, a la Maurice and Martin", it could not let Rose's theory on how it wins new business go unchallenged.

"Although it mi...