comparative study on sourcing (set design and vm)

sourcing different materials to execute a design, plays a major role in both visual merchandising(VM) and set design. one needs to get the right kind of material in a limited time and also at a reasonable price.the materials are required on a temporary basis so it is better to hire them than buy them. not everything is available on hire so one has to buy it, which is a problem.

i am doing a comparative study to find out the basic difference between the sourcing done by visual merchandisers and set designers. then i have to decide on the problem areas and look for their solutions.

anyone who has an idea about either of the two(visual merchandising or set design), plz reply. and also let me know if u can think of any problem areas in this and any solution you recommend.