Did you also go clamming with Tataru? That is a separate one after her ACN adventure. That is the one a lot of people miss:
http://ffxiv.gamerescape.com/wiki/An...Timeless_Wants
The same thing happens with Hoary Boulder as well... there is a second quest to do after the first one.
After doing both tracks from Tataru and Hoary Boulder, then you go talk to Minfillia on the Promenade in Ul'dah.
You have to complete both tracks that branch off of Administrative Decision before advancing to A Time to Every Purpose, and each branch has you check in with her separately to finish the second quest in that track. If you run both tracks down before going back to Minfillia at the Rising Stones, you will actually be prompted to choose which one you are going to complete: Ancient Ways, Timeless wants or The least Among Us--you have to talk to her twice to complete each one. If you run them separately, you wind up having to visit her after each set before she will advance.
See if we can sort of map it out:
Code:
Unexpected Ambition -> Ancient Ways... -> CS with Min
Administrative Decision < > A Time to Every Purpose
Where We are Needed -> Least Among us -> CS with Min