How common is rebranding?

Case Study - From BoysTown to yourtown Rebranding an Iconic Australian Charity
1-    How common is rebranding? Can you describe other rebranding examples?
2-    Why was Project hello commissioned? Was this a tactical or strategic move?
3-    Who were the stakeholders of BoysTown/yourTown?
4-    Was the rebranding from BoysTown to YourTown the right course of action?
5-    How was the rebrand launched? What, if anything, would you have done differently?
6-    How would you characterize the rebranding to date: too slow, as expected, exceeding expectations?
7-    How can yourtown increase its brand awareness?