The Intermediate > Time Series Realignment is rather interesting as in real life i wonder how it may be applied to offset start dates to same date.
Resolution time: ~12 minutes (5 minutes to think about a solution, 3 minutes to get the table calculation(s) right)
Solution uploaded to Tableau Public: https://public.tableau.com/profile/ojoswi#!/vizhome/timeseriesalignment/TimeSeries