I was, I picked only one team though. At the beginning of MyCareer I picked the Lakers as my favorite team and when the option to be traded came up (the second of 3rd time) I asked for a trade. When the GM brought me in a few games later to ask if I really wanted to go through with it, I said yes and he asked me which teams I wanted to be traded to. I then picked only the Lakers in hoping I would get there.
I was traded to the Lakers. I had to do it twice though as the first time I was traded to the Magic...go figure.