Well, I feel like the whole album screams "I Am..." minus Video Phone that we know she ain't able to back with real life receipts; the other songs on the Sasha side were personal or vulnerable. I mean SCARED OF LONELY, EGO, HELLO could be I Am... songs; Single Ladies were Bey life at that time.
and we all know now she's able of pulling a Why Don't You Love Me and a Diva behaviour in real life. Radio is beyonce as a kid falling in love with music. I mean it's Beyonce story not as cohesive as Self Titled but certainly as vulnerable and personal.
So can we agree that the album could ve been titled " I Am " and titled the world tour "Sasha Fierce" since Sasha is more like the spirit that makes her agressive and sassy (thinking of it she's not even aggressive on Sasha Fierce maybe except Diva and sexual on Video Phone).
Sasha Fierce would have rather fit B'Day or her 2009 world tour as a title imo.