The Houston Rockets are calling for backup. Can you hear them?  This morning Houston executed a trade with the Atlanta Hawks to acquire the draft rights to former second round pick (No. 37 overall in 2002) half-Australian half-Danish big man David Andersen. The Rockets gave up a future second round pick, cash and future considerations (as announced by Vice President/General Manager Rick Sund).  David Andersen is a skilled power forward/center who began his professional career in 199...