private function getByManager($key, $value, $default = null)
    {
        if (0 === strpos($key, 'manager-') && \is_array($value)) {
            $manager = $manager = $this->get('manager', '');

            $value = \array_key_exists($manager, $value)
                ? $value[$manager]
                : $default;
        }

        return $value;
    }