What about "hybrid" approaches?

Unfortunately, following the common mistakes in the industry, PMBOK 7 talks about hybrid approaches as well. In reality, there are no hybrid methods for projects, because you can only be adaptive in a project when all its elements are adaptive, and if you make a subset predictive, it would block adaptation in the whole project. Yes, I tried, but I couldn’t convince the rest of the team to remove it from the guide!

People who talk about hybrid approaches usually don’t pay enough attention to the dynamics behind the scenes and focus rather on the superficial aspects of the methods, then as soon as they see a combination of the common elements of both methods in one system, they call it hybrid. This is another form of the Cargo Cult effect.

The only acceptable scenario in mixing approaches is to divide the product into multiple parts that are more or less independent of each other, and use a different approach for each. This setup is, in fact, a program with multiple projects, each using a single approach, and there’s no real mixing of approaches in a single place.