Despite earning those huge salaries for doing so, despite the oft-quoted pretence that it is tough at the top, actually it is easy to drastically reduce losses and consequently earn big bonuses. You simply close the loss making operations. It might require a degree of heartlessness and loss of popularity with those whose jobs you remove, there are obviously short term transaction costs that need to be written off, but basically it is still "easy".
What is "difficult" is to use all your existing resources and to increase their value. To provide leadership and direction to get more from the team. It's another way to increase profit, but it's much harder.
But what gets the big promotion and big salary and big bonus in the quickest time? Obvious really.
Not my words, but I wouldn't write it here unless I at least partially agree.