BF, I picked the Tar Holes just for you.
Sweet dreams, buddy.
Monkey, the lettering on the basketball and baseball jerseys are not alike. One is a serif font, the other is sans serif. That's pretty easy to distinguish. Additionally, one uses "North" where the other does not. And the track jersey doesn't use any words, only the NC logo. Inconsistency at its finest. They may all have a common thread, but they have their differences as well – which proves my point that all the uniforms do not need to be, well, uniform, in order for the university to be able to properly market/brand its athletics. If you look around the nation you'll find that there are differences all over the board in several places.
Take Arkansas, for instance. The lettering on their football jerseys looks nothing like the lettering on the baseball jerseys. The hog on the football helmet in no way resembles what's tattooed on the basketball floor at halfcourt and what used to appear on the shorts. They do okay in branding, though.
There are other examples I'm sure, I just don't feel like bringing every case to light. The way I figure it, you need one good central theme (the logo), but after that, the more different recognizable symbols, alternate logos, fonts, etc. that you can come up with, that's the more you can market and sell.