It's great to see O'Conner doesn't want to break up the Millsap/Favors/Jefferson core. There just really isn't any reason to when Kanter hasn't shown much. Millsap can play 6th man, and hopefully they get Andre Miller in the offseason. Since he's so old it still leaves a long term hole at that position, but he'd really improve the team next year. They should probably look for a shooter at SF or SG too.
Hopefully nobody tries to overpay Carroll. He looked great at the end of the year.