Today excellent results, perhaps unfortunately, are not enough: relationships play a major role too. Thus a good manager must be able to "sell" themselves to influential people around them by creating the best PR for themselves. Of course, they must be able to balance sincere presentation of their results against excessive servility.
7. Do not think you can separate your work and private reputation
No senior manager can rely on people ignoring his private life. Problems with alcohol, drugs, promiscuity or other addictions clearly show that you are not able to manage your life.
-kk-