how do you beat the knicks in nba 2k13?

me and my friend are having this series best out of seven. hes the knicks im the heat. i was winning the series 3-0 but then he came back and won two games so now its 3-2. i cant let him come back and win. he shoots alot of threes and i was wondering if anyone has any tips or help to beat the knicks wit the heat. thnx