One guy o think would be a good fit as a cheap backup pg would be jj barea. Give him a one yr deal for a couple mil. I think he's underrated as a playmaker and high bball iq glue guy. Then I'd sign koufus, casspi, acy, which would give us:
Pg- collison, barea, stockton
sg- bellinelli, mclemore, Anderson
sf- gay, casspi
pf- wcs, acy
c- cousins, koufus
That's a solid 9-man rotation. And we wouldn't have to break the bank to do it as far as long-term. No glaring weaknesses and very balanced.