For KU maybe it doesn't, but most teams have to give up something in recruiting.
Many of them have improved. Some will just always be outmatched, which can make the entire team look bad as they try to cover. You can stomp your feet all you want, but some guys just will not be good defenders.
I do think the conference has figured a few things out about how to combat our offense by exposing the weak links in our defense. Our guards get essentially no help from our forwards, and are stressed by having to always double the post.
Have not seen us do it much the last four games. Our guards just guard loose at the perimeter. One guard expects his wingspan to make the difference.