CFOs and Job Security

In a list of top concerns of CFO’s,’scarticle “What Keeps CFOs Up at Night” listed personal job security as #10 out of 10 top internal concerns. Given the fact that job security made the Top 10 list, this comment in the article is interesting to me:

“CFOs appear confident that their services will be necessary to guide their businesses through these tough times: they place personal job security last on the list of concerns.”

While CFO services ARE necessary, the average tenure of a CFO is still three years and declining. Job security is only as good as his daily performance and as far as the company’s next merger, acquisition, cash flow crises, or flat profits.

My question is, are CFOs really not concerned or are they in denial? Is it perception, or reality? Any thoughts?