Without a strategy, running any business would just be gambling with money, time and your efforts.
I learnt crucial lesson when trading cryptocurrency. I was confused on whether to be a day trader, a scalper or just a die hard holder. I would have made more gains if I had stuck to a single strategy, as coins I held went on to do 20x and even more.
Even in my partner's foodstuffs business that is seasonal, you need to develop a strategy on when to buy, how to do it and when to sell for profits or else you lose when prices drop again.
For someone who is starting a new business, it's best to follow a proven strategy first and then tweak things when necessary. Many people are try to reinvent the wheel with absolutely no idea what they are doing. This is especially true for those who want to make money online, and they mostly end up failing and then blaming the system.