I am the same boat of show me, but KF has taken long looks at the mirror in the past and made structural changes to his program. Switching to mostly CASH, practices in the morning, loosening up social media, addressing (some) coaches who were treating players badly, allowing Davis to do whatever Davis was trying to do. Not saying all these have been good or bad, just saying he has made structural changes in the past when faced with a roadblock to success. KF believes in his way of doing things, but he is not so set in his ways that he would rather lose than change.
I believe the biggest change the offense needs is not OC or play calling, but changing the primary blocking scheme to drive blocking.
With the return of Britt and addition of Proctor, this line could be one of the bigger OLs in the country. The returning guys have demonstrated that they are not the most athletic and fleet of foot. They are big and they can maul, but they just do not appear athletic enough to consistently make zone blocking work. There are just too many negative plays. So, let them maul! Line up, and drive block the dude in front of you. Scheme to the talent you have.