He came to Fort Worth for the money. $2.8 million of it, allegedly. He has no previous ties to TCU, and had likely never heard of the place until Sonny started waving a wad of Benjamins in his grill. That he is a senior is irrelevant in terms of this team and University, as he is a stranger. Had he been here for 4 years, this would be different, but the Team has essentially had this guy plunked down in front of him, and the Head Coach told them, "This is Mr. Harvard. He is your new Captain, and leader of this team. He'll be wearing a name tag for a few weeks so you can get familiar with him. Now, I'm paying him a lot of money so I can look good, so you all go and play your hearts out for... um... Oh, yeah! Mr. Harvard. Oh, and you kids that have been studying and working hard these last years, Thinking you're going to get a sniff of playing time? Well, tough. This is the Shiny New Toy, and I paid a lot for him, so you get splinters in your ass for another year."
While you are completely correct that Mr. Harvard is not the sole source of problems, he is Sonny's Choice, and Sonny will keep using progressively larger hammers in an effort to make that square peg fit in the round hole. I don't believe that he is the "best" QB on the team at all, given what we have seen, and we all know Sonny's "talent" for picking the very best. To me, he is a symbol of the whole wretched state Sonny has put us in, and he'll keep trotting the guy out there, thinking that "This is the series where he turns it all around. This one..."
It's not going to happen. And I can't help but think there is a great deal of resentment on this Frog team as to how they've been treated.