This took massive assistance to solve. I'm not sure that "medium" is the correct rating, at least it wasn't for me. I never thought of lining up the Alums, I was actually trying to line up the mascots (trouble there was that Utah State, although they are the Aggies, have a Bull and A&M has a Dog). But even when corrected I was busy crossing out common letters (GS is common to all) and then crossing out all common letters. Only after many nudges form different sources did I arrive at the answer, I guess I got Bufalloed
My sense of awe and wonderment goes to "how did he think of this"!