So the company auctioned off the air hockey table and cut off the free soda in the name of nonessentials? Well, a study conducted by Menlo Park, Calif.-based staffing service firm Robert Half International suggests the company draw the line at its continuing education program. According to the survey of 1,400 chief financial officers of companies with more than 20 employees, 94 percent of CFOs believe it is important for businesses to invest in ongoing professional develop