Should I switch prep providers for a CFA retake?

Switch one provider, not all of them. Keep what worked, swap what did not.

What to evaluate from your failed attempt:

• What did your band scores show? The CFA Institute does not give exact percentages, but the band-level feedback shows weak topics.
• Did you complete the syllabus or fall behind?
• Did you do mocks under timed conditions?
• Did you review missed questions or just count them?

If you completed the syllabus and did mocks: the issue is usually the mocks themselves, not the notes. Add a new mock source for varied phrasing. Increase mock volume.

If you did not finish the syllabus: the issue is the schedule. Same notes can work; build a more realistic plan and start earlier.

If your band scores were weak across multiple topics: consider adding a video source like Mark Meldrum to convert reading into recall.

Throwing out all materials and buying a new provider rarely helps because the underlying curriculum is the same and your existing notes already have your annotations. The marginal cost of an additional Schweser license is sunk; the marginal benefit of buying parallel materials is low unless the original material was the diagnosed issue.