As I alluded to earlier, Burke needs to inject some energy into the team immediately. Three ways of doing that: a) he can fire the coach b) make a trade or c) call up somebody from the Heat.
Firing the coach won't do anything since the problem is very clearly a lack of talent. Making a trade would be the best option but good deals take time and it's never a good idea to make a substantial move when the team's losing. Plus Burke already trade making a minor deal in Westgarth and that did pretty much nothing. So that basically leaves calling up somebody from the Heat; again, not really the best option since they too are struggling at the moment. But something needs to give and this is by far the easiest thing to do; call up one or two of Reinhart, Knight, or Hanowski and see if they can inject some life into the team.