I will repeat this every time I see a line similar to bolded: there's a reason, Ben was second after Boogie in +\- last season. One of SGs wasn't terrible.
People, who chastise JT for lack of ability to defend perimeter, would be really pleased to watch Kosta try and do that [/sarcasm]. And pairing Boogie and Kosta on offense? Again people, who thought JT doesn't space the floor well enough, shouldn't wish for this. Kosta is an excellent interior defender, who also has a relationship with Karl, so he might be convinced to come to Sacramento rather easily, but hell no to him as a starter. It will only work, if you bring Kosta via S&T for JT (might take Beno along the way, if he wouldn't mind coming back), make him 3rd big, but before that find someone to man PF (Amir or Taj), while slowly bringing WCS off the bench. After reading a bit this weekend I would say Koufos likely ends up in New York as a starter.
Jerebko will get at least his current money ($4 million), Boston loves him, so don't see any way he comes over, unless FA process is a total bust and you have to pick a decent bencher at least.