He did operate with temporary acting appointments but they are time-limited in that capacity. But he tried and he did make progress using those options but 210 days or 7 months is not enough time to stack the deck against Swamp bad actors especially when certain factions of the federal senior service would stonewall and drag their feet.
Unfortunately, trying to fire, terminate, demote federal employees is like an effort to land on Mars. They have for generations insulated themselves and call each effort to to discipline them an attempt to ‘politicize’ government workers.
We need an overwhelming unity of Americans committed to taking back their government and passing laws to get rid of federal workforce intransigence. They can be disciplined through courts but it’s not easy and the lawyers that know terrain are mostly grooved into EEOC and Torts under FTCA. It can be done but it’s tortuous.
Kennedy made these bureaucratic asshats Union by EO I don’t know WHY IN THE HELL Trump did not overturn that EO!!