The fundamental problem for SLB and why it is set to fail: SLB management and its success is driven by short term metrics and rewards, 12 month to three year objectives, promotion and bonus attached. As a manager this is a great, close the deal, secure the contracts, collect the bonus. The risk is borne by the shareholders. It smacks of a dying company in a dying industry, take as much as you can while you can.
I have not seen it described more correctly and more succinctly, @PbiRxSv-fsw. This is Schlumberger in a nutshell. This is why layoffs are so prevalent, they bump up those coveted quarter numbers, despite the damage they do to the company in the long run.