Good call on the TE. I don't believe that we have completed a pass to a TE yet this year. That might be mostly due to Thompson being our main TE and his role has been solely used as a blocker. We did have a TE running wide open for what would have been an easy 40 yard TD on one play against SFA, but Hardison just didn't see him and threw to a contested Cowing on the other side of the field. That will happen, but hopefully Hardison and staff see that on film and learn from it.
As for the running struggles, you are correct as well. Against SFA, we wasted a lot of 1st and 2nd downs and it probably doesn't take much investigation to see when we are going to run. But I also just feel like Dimel is doing something that tips the defense as well, so they are confident enough to stack the box on certain plays. For instance Tupou only seems to come in on running plays(maybe that changes now that McKee is hurt), sometimes Fields position standing next to the QB in shotgun has been a half step different on the plays that he is getting the ball. As you also mentioned, maybe Dimel needs to stop calling plays at the line of scrimmage and giving teams such a long time to react and adjust their call.
I think Dimel would be better off running more sets that could be either be pass or run, as opposed thinking that he is doing something creative by running a power running set on one down and then a wide passing set on the next down. Those drastic formation changes aren't that creative when you are running predictable plays out of them. Dimel also needs to just adopt the approach of spreading out the defense a little more, instead of packing it in and pounding into a stacked front(Kugler style). There is a reason why almost every other college team is running that type of offense.
I won't totally blame Dimel for his play calling in the UT game, because our WR's were getting no separation and our O-line could get no push in run blocking. There just isn't much that a playcaller can do in those situations. Our best(and probably only) offensive success in that game came from play action. But there wasn't much that could be done to make the results of that game drastically different.
Overall though, there are definitely some issues that need to be fixed in the current run game approach and it is Dimel's job to fix it.