Hewitt's teams after 2005 really struggled to inbound the ball. The struggles continued under Brian Gregory. Pastner cleaned-up the problem immediately and decisively. His teams rarely struggled to get the ball in bounds. Last year it was a problem again.
My observation is that teams that have no problem on in-bounds plays are those where the trigger man knows where he is going with the ball before players start making cuts. My theory is that teams that run particular plays with scripted cuts and screens, and pre-designed first, second and third options are the teams that have no problems.
On the other hand, teams that run in-bounds based on principles and read-and-react, there is too much hesitation on the part of the trigger-man because he is not sure where he is going, and that hesitation allows the defense to close-out.