Spanish researchers have identified three things good bosses lack and three behaviors that make people better bosses. An attitude, a closed door, and a Y chromosome are all reported as bad things for a boss to have in the article 3 Secrets Every Manager Must Know
. The same article describes those three secrets for being a better boss.
For an opposing view, read the article Men Are Better Bosses and for more on becoming a better boss read Ten Things To Do Today To Be A Better Manager.