Couple things. Not quite what the internet is telling me on salaries. Looks like we paid Wommack $288,500 in base. Then we paid Groh $150k base, with a pretty sizeable bonus. I think Groh ended up getting somewhere between 3-400k from us. Groh would have cost more, but his salary was essentially irrelevant (UVA owed him something like $4 mil minus whatever we paid him).
Roof came in at 550k, and was up to low 600ks, so we just gave him a bit of a bump. BUT, let's take into account the most important thing - we don't have to pay an offensive coordinator. Combined CPJ and CTR are at 3.75 mil per year. No offense coordinator saves us a ton. Look at Clemson for example, last year they paid their coordinators combined over 2 mil. Virginia paid theirs something like 1.25 mil.
That may actually be the biggest thing of Paul Johnson - we save several hundreds of thousands of dollars a year because he doesn't need two coordinators (difference of say a 5-600k coordinator to a 200k coach). We can throw a lot of that at a guy like CTR who is better than what we could otherwise afford.
