Does more than one model booker provide talent for a job?

Does more than one model booker provide talent for a job?

In New York, particularly, girls tend to have their own managers within a model agency. With Gisele, Tyra Banks or Naomi Campbell, there would be only one person allowed to deal with them. If I was a big client that wanted to book several supermodels, I would expect to talk to several different bookers about individual girls. However, on lower markets, if I'm a catalogue or a magazine, ringing up saying, "Who have you got available?", it doesn't matter to me who I'm talking to.