How is the inadequacy of Bubba Offenhaus as Civil Defense cheif shown?

Bubba Offenhaus really doesn't do much. It is Randy that must take hp his slack. Bubba hides away in his house rejecting the obvious seriousness of the situation,

"a public appearance exposed him to all sorts of requests and problems which frightened him and about which he could do nothing. "

At one point Bubba demands to be compensated for a lead coffin to keep a radioactive body in. The irony is that money is meaningless and he looks like a greedy coward.