Have to agree with this in this case, but keep in mind that Matt Canada was fired by NC State. However, further to your argument, Tom Allen at Indiana has done a fabulous job with Indiana's defense (#48 in total defense), Donald Brown at Michigan (#1 in total defense), and Jim Leavitt at Colorado (#14 in total defense).
Hopefully, our coach is flexible enough to recognize an experienced coordinator could provide a boost to RU's offense.
Hindsight is 20/20, but looking back, that Pitt poster wrote one of the few rational posts in the DM hiring thread.