Yep. There is likely no program you're going to go to where there are NEVER changes to a routine. As coaches, we need to continuously be re-evaluating routines and kid's placements to create a routine that is going to be a good balance of difficult yet able to hit consistently.
Common reasons for changing routines:
1. A particular section is not hitting and needs to be changed so that it will hit.
2. A particular section is not particularly maxing out the score sheet, so more difficulty is being added to to help it score better.
3. A particular kid left the team/got injured and some things need to be re-worked/changed based on her absence.
4. A particular kid is not hitting in a position/spot and they need to be placed elsewhere, thus changing your child's part.
5. The coaches just generally do not like a section of the routine, they've had outside people look at it, and decided that a section needs to be changed.