Ideea ca toate posturile de vanzari sunt similare in anumiti termeni, dar variaza in gradul de dificultate; dificultatea este legata de cantitatea de creatie ceruta pentru a gasi noi cumparatori si pentru a-i convinge sa achizitioneze produsele si de tangibilitatea si complexitatea produsului.
The idea that all kinds of sales jobs are similar in some respects but vary in the degree of difficulty involved; the difficulty is linked to the amount of creativity required in finding new customers and persuading them to buy, and to the tangibility and complexity of the product.