Hello Prasanna Shembekar,
To answer both your queries in a single word, the answer is YES--saying this from personal experience. BUT NOT from the perspective you seem to be understanding it from.
Sherley Johnson has said it right about the interconnection between the different--3--levels [Spiritual Quotient, Emotional Quotient and Intellectual Quotient] of a human being, in terms of his/her potential to interact with the world-at-large.
To go for a brief Recap, during the I half of the last century [1930-1950s], the general focus of the western psychologists was on the IQ--Intellectual Quotient--aspect of a human being. Later it was discovered that EQ is a better measurement of a person's happiness/satisfaction level. Then came the realization that SQ would the Best & Long-term method to cover ALL the aspects of human existence IN ADDITION TO addressing all the shortcomings of the earlier 2 measurement techniques--IQ & EQ.
And the irony of the whole thing was that this was known within India since eons/ages & we depended on the West to rediscover it all over again [like the concept of 'Zero']!!!
Actually your queries, taken in consonance with your comment about The Bhagavat Gita message ['...where in results are not the focal point of the Karma..'] convey that you are MIXING-UP the core principles more than anything else.
Let me explain:
Let's take your Second Query First [Can spirituality quotient help in reducing possibilities of burnout in employees?].
Understanding & enhancing SQ DOESN'T 'per se' reduce Burnout or any such condition DIRECTLY in a person. It only plays a 'critical' role in the 'effect' of such situations/conditions. SQ gives an individual the ABILITY to view situations from DIFFERENT & ALSO MULTIPLE perspectives/angles. This, in-turn, enables the person to get better grasp/understanding of his/her worldly experiences--hate, pain, ecstasy, pressure, etc--from multiple perspectives, which in-turn enable him/her to calibrate his/her 'internal response mechanism'--sort of 'fine-tune' the internal mechanism, which further leads to a better EXTERNAL/OUTWARD response that those around him/her actually see/notice.
To give a very simplistic analogy: when someone shouts/rebukes a group of people, one person may go into a sulk/depression, another may shout back, yet another may complain to the relative power-center [in a work environment, the Boss] & yet another may just ignore the rebuke BUT bear it in mind to hit back later & there COULD be a person who can just smile away the rebuke & forget it & get on with life.
The response mechanism in each of the persons is DIFFERENT...which leads to the 'genetically inherent' SQ [whether the individual notices/knows it or not]. The Original situation was the SAME for all of them, yet the responses were totally different in each of them.
Hope you get the point.
Coming to your Query-1 [can spirituality quotient of a person be improved by some method/ practice?].
In general, anything & everything [BOTH positive & negative] can be 'improved/perfected' by practice and SQ isn't an exception. Like the Saying goes: 'Practice makes a man Perfect'.
Actually there are multiple methods to improve SQ...some of them being what other members already mentioned: Meditation, Yoga [some of the Asanas]. However, the Best bet would be following the path of 'doing your duty & giving your Best to whatever you are doing'--this is where the "Karma Yogi" concept comes into the scene. In short, it says what I mentioned above--so in such an attitude to life & work, one doesn't need to depend on any Meditation or Yoga to enhance & maintain his/her SQ--which invariably entails additional effort & time--to handle such situations in life.
That doesn't mean a karma yogi doesn't face problems OR isn't focused on the Results--it's just that HIS/HER RESPONSE TO SUCH SITUATIONS IS DIFFERENT, which leads him/her to evolve different & more original solutions to the situations that he/she comes across in the course of work.
Being "not focused on results" DOESN'T MEAN that the 'results' are 'out-of-view'.
If this were so, Krishna wouldn't have said before the War & after he returned from the failed attempt to avert the war--'now that the decision to fight the war has been taken, it's our Dharma to win it'. [There are other angles/aspects to this--of Truth & Dharma--but that would be another topic altogether].
It just means that the person is ALWAYS looking @ the LARGER picture--which would ALSO include the possibility of the desired results not being achieved. This MENTALLY prepares him/her for any eventuality. Like that Saying goes: "Strive & Hope for the Best & Prepare for the Worst". And when the person is mentally prepared for ANY & EVERY eventuality, he/she is NOT EFFECTED by what finally happens.
And the whole BEAUTY of this approach is this: More than acting as a 'constraint', such enhanced SQ actually increases the THRESHOLD of the individual to pain/shock/surprises.... AND this leads to the individual to MAINTAIN his/her FOCUS to come-out with incredible solutions....in management parlance, "out-of-box" thinking [HOW such enhanced thinking capacity is put to use--for positive/good OR negative/bad causes--is a totally different matter altogether]. This is a large subject by itself in Parapsychology Labs now.
From another perspective, WHAT happens IS NOT in YOUR hands [since it is dependent on many variables], but HOW you ALLOW IT TO EFFECT you is absolutely in your hands. That's what SQ attempts to build-up/enhance in an individual.
I hope this hasn't made things more confusing.
Rgds,
TS