Is Miami a Thin Team?

The Miami Heat have one of the worst defenses in basketball. The team is really dependent on Jimmy Butler and I always want him to be a little bit more aggressive offensively as a score. He only took 12 shots last night but he has the ability to kind of I don't want to say coast but he picks his spots because he's older. But then you watch the last five minutes like the defense he played on Booker on that last play was out of control. That was like game seven defense and I was watching it wondering like in the back of my head. It could get pretty I want to say ugly like I think this team is just average, I don't think they're very good