That can happen, it's just that it's mostly a game of luck more than skills.
I've seen redesign fail spectacularly and deliver incredible results - and they were done by the same people.
Sometimes following the best practices makes things 10 times worse.
Even when you throw AB testing and pretend you are following the data, the sample size changes so much you can't be sure off anything.
I've seen A/B tested changes winning in the benchmarks perform terribly in the long run.
So would you have the same chance to hit the needed changes to triple your revenue by hiring a developer for 20$ per hour on freelancer? Absolutely, yes.
I'm not spending a penny on agencies, let the big companies do that
I've seen redesign fail spectacularly and deliver incredible results - and they were done by the same people.
Sometimes following the best practices makes things 10 times worse.
Even when you throw AB testing and pretend you are following the data, the sample size changes so much you can't be sure off anything. I've seen A/B tested changes winning in the benchmarks perform terribly in the long run.
So would you have the same chance to hit the needed changes to triple your revenue by hiring a developer for 20$ per hour on freelancer? Absolutely, yes.
I'm not spending a penny on agencies, let the big companies do that