Yeng Guiao's impact on Rain or Shine is now being felt barely a week since assuming the coaching duties heading into the Commissioner's Cup of the Philippine Basketball Association.

Nick Demusis said he is thrilled to play for the seven-time champion coach as he can use all the lessons he will gain to further enhance his young basketball career.

"We're now seeing the 'Yeng Guiao Effect," said the Filipino-American swingman at the sidelines of the Elasto Painters' friendly duel with Changwon LG Sakers late Thursday at Kerry Sports in Taguig.

"You can tell that everybody is excited to play."

True enough, after returning to the Elasto Painters from a five-year stint with NLEX, Guiao had already warmed up and is now more comfortable with the scheme of things with the young squad.

He said he likes how the Elasto Painters have responded to the new system, giving him a reason to believe that they can compete with bigger, more seasoned foes.

"It is a new system, of course," the 63-year-old Guiao said.

"They are running the system for just a week, but they're getting the hang of it. It just needs a little polishing. I'm very positive we can get better. We can compete with the big teams."

He added that his young team has what it takes to emerge as a strong contender.

The team that Guiao had taken over is no longer the same squad that he led to the Commissioner's Cup title in 2016.

In fact, only three players remained from that champion squad in Gabe Norwood, Beau Belga and Jewel Ponferada, but Guiao still believes that young guns like Gian Mamuyac, Rey Nambatac, Shaun Ildefonso, Leonard Santillan and Andrei Caracut can compete with the heavyweights.