I thought this was the plan from the moment we signed Terry. Jet plays ~10 mpg at PG and 10-15 at SG. Two birds with one stone, ya know?
AB getting hurt makes this slightly less legitimate, because Jet will likely have to play more minutes at SG (at the start of the year) than we planned. It's a good thing we snagged Courtney Lee, who can give us 30 mpg while Bradley's out and 20 mpg when AB's back. And Dooling should be back as a backup PG while AB's gone but when AB's back to playing 20 mpg Dooling will be relegated to nothing but a depth option.
So while I don't think Jet should be our only PG backup, I think he will be the only one who plays when it matters.