Sounds like I'm forming a band for developers. Larry, did your wife get one of these for her IT band issue? The first time (hopefully the only time, your comment made me very nervous) I had an issue, they recommended a roller. The appropriate process is to sort of lay on it with the affected "leg" and then roll back and forth. You know you're doing it right when actual tears start to flow. Not out of your leg. The normal way, tears of pain from your eyes. And I don't say that meaning "until it feels like you'll cry", I will admit to actual shedding of tears. Hurts like hell. Not kidney pain style, but definitely unpleasant.
I tried these exercises too. Seemed to be making a difference, although the exercises less so than the roller.