Coaching - how to choose a coach

I've blogged earlier about Coaching as the new business, and now came across this CareerJournal article on how to go about choosing a coach:

So how do you pick the right coach to help you with your career?
According to Dr. Ehrlich, first you need to understand what kind of coaches are out there, and he points to three main types. First are executive coaches, who are often hired by companies to work with employees. They are called in to fix a manager's behavior, help a high-potential employee make it to the next level or help improve an employee's flagging performance.

Second are career coaches, who often help people outside the corporate setting who are between jobs to land a new position, or else work on issues that arise in the
workplace. They also commonly help people figure out what they are passionate
about and develop a map for the long journey of their careers.
Third are life coaches. They have become more popular in the past few years and "tend to say they do it all," including advising clients about personal relationships and emotional issues, says Dr. Ehrlich.
Other coaches may call themselves by a variety of names which sometimes indicate their specialty: "interview coach," "relationship coach," "productivity coach," "workplace coach," "resume coach."
Once you've determined the type of coach you want to work with, you
can begin to narrow the field.
Network with colleagues and friends to see if they can recommend a coach. You can also visit the Web site for the International Coach Federation, a Washington nonprofit professional association for coaches, at www.coachfederation.org. The group credentials individual coaches and accredits coach-training programs.
In general, it's a good idea to look for a coach with extensive training, even
though some gifted advisers may have limited formal training as a coach. Be sure
to investigate certification requirements. While some certifications may be easy
to come by, others are rigorous. For example, the ICF's master certified
coaching designation requires 2,500 hours of client coaching, among other
requirements.
Since coaching requires an open exchange and personality comes into play, you'll need to go with your gut instincts about a coach. Tony Siciliano, a senior sales executive in Framingham, Mass., met a career coach last year at a networking event, and "I could tell right away that she could help me," he says. The first time Mr. Siciliano, 48, worked with the coach, she helped him become less negative toward a previous employer during job interviews, and he got the next position he applied for. "You can't argue with results," he says.

Where the US goes, India follows. So how soon before we see Coaches proliferating Indian organizations?