You're right for the most part. Boston's wings are younger, more athletic and can do just a bit more. Jimmy's probably going to facilitate when he's on the floor. Dragic will also have a hard time guarding Kemba.
Shorter lineups during the playoffs, but this Heat team is very deep and still has a few people that haven't had much playoff action. Both Nunn and Olynik contributed a lot during the regular season, but haven't seen too many playoff minutes.