Good question. First, I'll address the seeming flaw in your premise that he really hasn't been successful as a DC. College football is cutthroat. You don't keep getting jobs if you aren't successful. Secondly, CTR has had some good Ds. He had Minnesota in 2008 as a top 50 D, when the prior year they were one of the worst in FBS. Minnesota gets significantly less talent than we do, and plays a fairly decent B1G schedule. His D at Auburn was trending up from 2009 to 2010 when the wheels fell off of the Auburn bus in 2011. 2011 was ugly for Auburn on more than just the defensive side, and 2012 got the HC fired, so while CTR had a hand in it, I don't blame the Auburn 2011 letdown completely on him. It also ignores the fact that the 2011 Auburn D was a good defense. His 2012 season at Penn ST probably gives me the most hope, though. He took over a team that was going through the NCAA ringer immediately following the Sandusky debacle, and in spite of the reduced scholarships and probation, and free transfers allowed to any player on the team, and guided them to a top 20 defense, second in the B1G.
Now, we don't get the same level of talent that Auburn and Penn St gets, but we get more than Minnesota. Roofs schemes aren't unique to Roof, and in spite of what some posters on this board say, they aren't "outdated." Many other successful DCs in both FBS and the NFL run similar schemes. Our issue has been mostly execution of the scheme, and to some degree, the scheme itself. I attribute the scheme problems to personnel issues. We adapt the scheme to fit the talents of our personnel, as we should, but that also limits somewhat how we play to the scheme. As we continue to grow the talent base of our D, I feel as if the scheme fits will be better and we will see more positive results. I think we are already seeing some of this. Ajani Kerr and Tre Swilling are the CBs of the future. BJS is a revelation at LB. Branch and Adams are only going to get better on the DL. AJ Gray will play in the NFL.
Also, I genuinely believe that one of the dumbest things teams do is continuously play the coaching carousel game. Let me ask you this question: If you had a HC who, through his first six seasons, went 24-40-2, would you want to retain him? And this coach took over a team that had gone 47-20-1 its previous six seasons, with a 10-1-1 record the year before the new coach was hired.
Well, VT had faith in that coach, and Frank Beamer turned out some pretty good teams during his time as HC. The point is that sometimes, you need to understand where we are, and what is really required to get where we want to go. If we fired CTR tomorrow, and hired Venables, we would still have the same problems. Unless and until we commit to funding our programs and facilities, we will forever be hampered in our appeal to both recruits and future coaching hires.
So, I guess I sum this up as I am not really endorsing Ted Roof as much as I am endorsing patience and allowing a coach to continue to improve. If nothing else, this will pay dividends in the next coaching hire, as we won't be viewed as a school that makes rash decisions because of a bad year on the gridiron.