Boring, unimaginative, hype-beasty, and with a veneer of cheapness: this is what Givenchy has become under Williams' direction. And whilst the womenswear has improved (slightly) to be more soft and feminine than his previous proposition, it still can't compare to Clare Waight Keller's vision for womenswear.
Unfortunately it seems he is not creative enough to sustain a Maison like Givenchy, which needs new ideas, new stories, new silhouettes, etc, constantly.
It would be interesting to see someone like Daniel Lee take over Givenchy and make it more modern/sophisticated and get rid of all those obnoxious branding and logo elements, which as Kimihiro wrote, has ruined the prestige of the brand.