Scott showed up at Shinnecock Hills on Sunday without David Clark, who has been exclusively on his bag for the last 18 months.

Scott said they parted ways after making it through the 36-hole sectional qualifier on Monday in Ohio.

Instead, he will use a caddie from Shinnecock Hills this week at the US Open.

The caddie is Lenny Bummolo, and he's no stranger.

Scott has used him during casual rounds at Shinnecock Hills over the last five years, including one round in 2013 when Scott set the course record from the championship tees with a 63 (it was broken the next year by Kevin Stadler).

"Lenny has been here for so long. He knows the course so well, and the greens," Scott said. "I really think it's a valuable move here this week for me stand there hit it where he says. He's going to be right more times than me."

Scott didn't offer a long explanation on why he split with Clark, except that it's part of the business.

"There's never good timing for these kinds of things," he said. "The player-caddie relationship is an interesting one. I've had a few over the years.

"It's an intense work environment. It's a love-and-hate thing. It becomes a revolving door out there. Sometimes, I have to make selfish decisions."

Scott has parted ways with caddie David Clark after working 18 months together. PHOTO: Tom Pennington/Getty Images

As for the coach?

Brad Malone is also his brother-in-law, and while they had not been working together the last few years, Scott decided to bring him back.

"It's a recent thing – very recent," Scott said.

As recent as Sunday?

"As far as everybody is to know, yes," he said with a laugh. "We've been communicating a little bit the last few weeks. I feel like it's a positive thing for my game."

If a caddie and coach were not enough changes for one week, Scott also played nine holes at Shinnecock Hills with a short putter.

But that's only temporary.

Scott said he would most likely stick with the broom-handle putter that he used to win the 2013 Masters.

"I'll putt with the long putter, I'm pretty sure," he said. "I just don't like thinking about it too much. I pick both up and I putt good with both. I don't want to get stuck trying to be perfect."

Doug Ferguson, Associated Press