Work results
The Gita further explains the theory of "detachment" from the extrinsic rewards of work in saying:

Assimilation of the ideas of the Gita leads us to the wider spectrum of "lokasamgraha" (general welfare) but there is also another dimension to the work ethic - if the "karmayoga" (service) is blended with "bhaktiyoga" (devotion), then the work itself becomes worship, a "sevayoga" (service for its own sake.)

Scientists at the US National Institute of Mental Health in Bethesda, found that laboratory monkeys that started out as procrastinators, became efficient workers after they received brain injections that suppressed a gene linked to their ability to anticipate a reward. The scientists reported that the work ethic of rhesus macaques wasn't all that different from that of many people: "If the reward is not immediate, you procrastinate", Dr Richmond told LA Times.
(This may sound a peculiarly religious idea but it has a wider application. It could be taken to mean doing something because it is worthwhile, to serve others, to make the world a better place ? ed.)
Manager's mental health
Management needs those who practice what they preach
In conclusion
A note on the word "yoga"