I believe that the importance of a strategy (and the tactics that a strategy might entail) increases as the difference in technical ability between two players decreases. So, it follows that strategy can be important on any level. Do pros employ strategies in their matches? I believe that they do (at least some of the time during some of their matches). But I think that much of the time the difference between two players boils down to technique and execution. And I think this is true on any level. Difficult question sureshs. I wouldn't think so. In general, men are bigger, stronger, quicker, faster, more powerful, more agile, etc., due, I would guess, to generally much higher testosterone levels in men as well as the physiological blueprint that results in somewhat different musculature, bone density, etc., etc. Working on maximizing service return technique and effectiveness would seem to be important on any level. Just as there are natural (and essentially unalterable) differences between men and women, there are also many variations among men and many variations among women. Some women can serve like men. Most can't. Some men have the potential to hit 120 mph serves. Most don't.