Why would Trump waste the chips, when by tradition, any election or re-election occurs, people hand in the resignations anyhow (except likely Mr. The FED doesn't think he's fireable by POTUS), so the POTUS doesn't have to do any mass firings to put new people in or move people around.

Trump can save all his chips, without changing the spotlights from where he's got them triangulated going into the final Election Weekend.