Those are remnants from the Knight-era. Knight only believed in banners for national achievements, eschewing banners even for Big Ten titles (with the exception being 1983). In general, I think this is a pretty difficult thing to complain about with IU, considering they've been probably the most discerning program when it comes to this (it's been awhile since I've been to most of these arenas, but I'm guessing IU was the only school that did not hang Big Ten banners, and may still be the only one without individualized Big Ten banners--the former may even be true for all programs across conferences). This might be the last time I get to say this, however, as I'm pretty sure "participation ribbons" will soon be the order of the day. My point is most IU fans seem to think Purdue hanging a Helms banner is the height of comedy, and they have a UPI and pre-season champs (what is that even?) banner hanging in their gym.