After all the party-switching, does the Erap-GMA frame still apply?

From the tribune:

As the deadline for the certificates of candidacy for senators nears, both the administration and opposition parties face headaches and problems, with the administration allies rejecting the proposal of Malacañang to take in as its senatorial bets, the two opposition-identified political personalities, former Senators Vicente “Tito” Sotto III and Teresa Aquino-Oreta.

At the same time, reports are swirling that former Sen. John Osmeña, who was already in the United Opposition (UNO) list, is also set to join Sotto and Oreta, along with detained former Sen. Gregorio Honasan in the Nationalist People’s Coalition (NPC), which is said to be putting up its own senatorial slate for the May polls.

and if the story about john osmena is true. this is the second time he switched to the arroyo admin side. first time was in 2004, nung tumakbo siya sa K4 ni Arroyo as admin senator.