I really think the only reason why Finasa stopped sponsoring the Osasco team were the things that happened in the 2008/2009 season of the Brazilian Superleague. They have done the exact same thing a few years ago with the basketball team. They felt outraged by the attitude of the Basketball Federation and stopped investing in adult basketball.
The thing is: Finasa is still sponsoring the Osasco's volleyball and basketball teams, their investments ceased only in the adult categories. Their tradition in sponsoring sports is exact the same and their project still exist.
As for the São Caetano team, I believe they can hire both Thaísa, Camila Brait and Paula. Sheilla, Mári and Fofão are worth 7 points only, not 21. So, they have just one 7-point player so far. Paula would be given 7 points, because she came from another team. So, São Caetano would have 14 points. Thaísa is worth 6 points, São Caetano would have 20 points. São Caetano can even hire other two 6-point players, cause the maximum amount of points a team can have is 32.