As Fred Wilson notes, Clay Christensen (an associate and in some respects a contemporary of my own) talks frequently about the way corporate executives calculate a Return On Investment (ROI) on any investment they make.
Other Republicans getting rid of their Foley money include Heather Wilson on New Mexico, Deborah Pryce of Ohio and Clay Shaw of Florida -all among the House incumbents viewed as most vulnerable in the midterm elections five weeks from today.