Donald John Trump Sr. welcomed new White House chief of staff John Kelly to his post this morning.

The president predicted that Kelly would do a “spectacular job” in the West Wing. I’m going to presume a bit here, but it looks as though the new chief of staff is off to a rip-roarin’ start.

Within hours of being sworn in, Kelly got the president to give White House communications director Anthony “Mooch” Scaramucci the heave-ho — 10 days after Trump hired him!

There’s no nice way to say this, but Mooch conducted himself like a maniac in his White House job. He has no comparable experience that would have commended him for the job and, oh brother, it showed.

Kelly brings an entirely different skill set to his chief of staff job, which he assumed after Reince Priebus got the axe this past week. Kelly is a retired Marine Corps general; he has 45 years of service in the military; he is a combat veteran — and a Gold Star father, having suffered the terrible tragedy of losing a son in combat in Afghanistan.

The president’s prediction of a “spectacular” performance by his new chief of staff was delivered quickly by the new guy.

Gen. Kelly has a long, steep mountain to climb before completing the task of converting the White House from an Animal House into a “fine-tuned” center of government operations.

His first full day at his new post suggests he is up to the task.

Then again, it’s only been a day. Gen. Kelly still has yet another wildfire to control. That would be the president of the United States.