Complex sentence: Russell and Lansdowne returned to government with Melbourne Russell being promoted to Home Secretary, but Brougham was out, with Melbourne telling Russell, "it can never be safe to place him... in an important executive or administrative office".
Split into simpler sentences: Russell and Lansdowne returned to government with Melbourne, Russell being promoted to Home Secretary. But Brougham was out, with Melbourne telling Russell, "it can never be safe to place him... in an important executive or administrative office".