What is important to current orthodoxy is that the pieces, which make up the whole theory, are snug fit, that there are no rough edges to detract from the orderly flow of calculated assumptions. The optimization theories must optimize. If all factors remain known and quantitatively precise then the supply side theory of the firm synthesizes with the demand side on theory of consumer behavior to form the theory of value. By allowing the almost random interjection of the entrepreneur the consistency is destroyed and the concept of economic value becomes suspect. Thus, Barreto observes, the classical economists eschewed reality and selected hypothetical dictums that have everything to do with convenience and nothing with actuality.