That works if you like to have the longest window possible. However, that’s not a good strategy for teams that want to win Championships. There are teams that have gone on fluke-ish playoff runs with this method: 2015 Royals, 2020 Rays, 2018 Brewers, 2016 Indians, etc. That isn’t the rule, though. It’s the exception.
If you want to be able to beat the teams who pay for elite players, you need to pay for elite players yourself if you want a realistic shot.