be in the saddle
To be in control of a situation; to be in a position of power. Make sure to get good grades now, so that you're in the saddle when it comes time to choose a college. We're still leading in the polls, so nobody panic—we're in the saddle here.
be in the ˈsaddle
be in a position of responsibility and control in an organization: It’s too early to say if she is a good manager. She hasn’t been in the saddle for very long.In horse riding the saddle is the leather seat for the rider.