Congratulations on finding a way to have some success.
Now pull out all of your team members and replicate it again with new ones in a defined time limit of about a week. Then measure it for thirty days for continuity and against company standards. There in lies your problem, there are no measurable and sustainable standards. Apparently none were ever developed for this convoluted process.
Most of this, if not all of this Modernization/E2E is subjective to a corporate person's(s') of
idea of what should be attainable. It's not a process that can be done with the average team member walking through the door. Even if you utilize the manual, the time frames given will not work under all conditions/if not most given the business model it is to be implemented under.
Having to "rob Peter to pay Paul" with hours from other predetermined task is an example of this. Eventually someone up the food chain will "tinker" with allocated hours and you be out of the hours to get your task completed. Then what? Once again, the business model doesn't match the process.
Then the real problem arises for others when some aggressive DTL or other executive learns of your success and says, "If they can do it, why can't you?" Hello ASANTS how have you been? Another cancer within Target that desperately needs addressing.
I'm not knocking your success. However, it has to be a replicated process before any of us can look to it as an answer to our misery.
Good luck with it and I hope you can keep your team together for a long time.