The Heat typically have taken polished, proven guys in the draft who are ready to contribute (see Jacquez this past year). Wooga would not fall into that category and they also have a glut of wings, so it would make even less sense.
I was defending Larranaga all week but it's hard to keep doing it. To come out this flat and listless with their defensive effort is a direct reflection on the coaching staff. Every one of these guys has tuned them out.