Porter, Co. has recently instituted a policy of promoting only from within its employee pool. For years, the company hired for advanced positions internally and externally. At the time when Porter, Co. instituted this new policy of promoting exclusively internally, its workforce of 200 individuals was 80% male and 20% female. The available labor pool of 3,000 qualified individuals from which Porter, Co. might recruit for advanced positions, were it looking outside as well as within, was 50% male and 50% female. Should Porter, Co. have any cause for concern over the legality of the new promotions policy? Explain in detail and support your conclusion with analysis of potential legal liability, suggested revisions, and explanation of possible consequences.