One of the better discoveries of the offseason so far has been RealGM's podcast, Dunc'd On, hosted by friend of the program Nate Duncan.
Duncan and guest Seth Partnow just released a Summer League wrap-up, and it included a lengthy segment on Doug McDermott and Bobby Portis, which I've embedded below.
If you can't get to that, check out the full episode and the Bulls talk starts at the 10:45 mark.
It's some of what has been discussed here, but a bit more as well.
Also this morning you can check out analysis of Portis over at Today's Fastbreak, describing how Portis in particular may have cooled down a bit from his stellar debut but ultimately looks like a keeper.