I applied to a PhD program. I contacted one professor and told him that I would like to join in his research team. He replied to me that he was unlikely to take on any direct advisees this year. He also said:
It is not necessary to be adopted into a specific research group in order to be accepted into the program; you can be accepted into the program, assigned an adviser, and then work with some other professors. I will keep an eye out for your application.
What can I do now? Do I need to contact another professor?