Yes, of course, each holder has their own strategy and it is part of one's skill level in doing so. We can never force the strategies we use to be used by others, and perhaps we can only recommend them.
Like me for example, I'm comfortable with what I'm doing, and I prefer to focus on one strategy only, because for me having many strategies might not be good for me because at some point we might be dilemma to use which strategy.
I don't mean to say that people who work with multiple strategies are not good, they are still good. But for me personally developing one strategy is better.
Indeed, choosing to focus on single strategy can have its advantage , specially when you become highly proficient in that particular approach, potentially increasing your chances of success. On the other hand, working with multiple strategies can mitigate the risk against market volatility.
In summary, the key is to find out what works best for you and stick to it, while continuously learning and adapting as needed.