[AnimalMuppet]

Agile kind of has to mean "willing to hack your methodology". ("Let us be agile by following this rigid methodology" is self-contradictory nonsense.)

So, try something. If it makes things worse, stop and try something else. If it makes things better, keep that. Repeat. (Note, however, that things that work may not work forever.)

It's really hard to lose by following that approach. The only way you lose is when someone has a rigid approach that must be followed, in spite of obvious evidence that it isn't working.