First, I'm not saying replace the tribal logo. But in the brand identity guide, they currently have a letters logo they are branding themselves on, and personally I'm not a fan of it. (Now, I'm not saying the rough mockup I posted is great, just general ideas, but LU is already branding itself on a letters logo, at least a varsity letter should look bold (aka Arizona, Duke, W&M, Wake, Oregon, etc.)
[The first few were less than stellar (especially without photoshop/illustrator), but the last one invokes a Duke or Arizona look]