The foreign currency exchange guarantees that everyone ends up with the currency they want as well as sets the standard of comparisons like the value of cars in yen to the value of food in dollars.
One way is to request a credit application (so dubbed because the supplier is essentially offering an unsecured loan): This sets the terms of the transaction and the procedures to deal with conflicts when they come up.
As the team setsup for its Tuesday night game against Jeremy Lin and the Houston Rockets, they will do so without three big men in Dwight Howard, Pau Gasol and Jordan Hill (all out with injuries).