Well...she did say that Cozy was close to being more of a changeling than her hive... With her guidance, Cozy could easily become the equal of the most elite infiltrators. In fact, why stop there? Her subjects had already proven themselves to be unreliable. Once Thorax had been dealt with, it would be extremely useful to have a right-hoof mare who embodied proper Chrysalian values. It would take some effort to convince Cozy to give up her dream of being an empress, but she was sure the prospect of having influence over both ponies and changelings would be irresistible.