Nor is the chemistry always right between teacher and pupil. The following narrative assumes that you would prefer to find one teacher and stick with him or her. I think that's the best way to get a degree of continuity in the lessons. There's also the benefit of having a pro who, over time, will know your game as well as you do. If you've decided to make the commitment to take lessons, you will do yourself a favor by shopping for a golf instructor in much the same way you would shop for any other professional in the service industry, such as a carpenter, plumber or chiropractor.
Some pros have more expertise in such specialty areas as short game play, such as putting.
Others like to focus on power. Like all golfers, pros have strengths and weaknesses. Your job is to identify a pro whose skills and teaching style suits you as a pupil. Take the time to sit down and discuss with your pro what you want to achieve with your game. You should probably first sit down and ask yourself what kind of commitment you're willing to make.