I've had IT band problems that come and go for almost 15 years now. They (obviosly) tend to come up when I up my mileage, which I have been lately so I've been rolling my IT band with a foam roller as a preventative measure. But I have an acquaintance who is both very fast and a physical therapist who tod me not to roll it, that my problems were lack of strength, not tightness.
Everyone else I've ever talked to says to stretch and roll. Thoughts?