For more than 100 years, Nestle Corp.’s Carnation Milk brand has been claiming its milk is superior because it comes from contented cows. Richard Hadden and  Bill Catlette, founders of Contented Cow Partners, are firm believers that like Carnation’s cows, contented employees willingly give more on the job. In today’s AIE Imaging Executive Podcast, Hadden, who along with Catlette is co-author of two books, “Contented Cows Give Better Milk,” and their newest, “Contented Cows Moove Faster,” explains how business owners can get their staff members to put more oomph into their work.