Hassani Dotson (31), pictured playing for Minnesota United, scored two big goals for the U.S. Under-23s.  (Brad Rempel-USA TODAY Sports)

GUADALAJARA, Mexico – There’s no substitute for success?

Well, actually there is.

Just as U.S. Under-23 national team head coach Jason Kreis.

He made a pair of second-half substitutes that led to the USA

The United States Under-23 took another step toward reaching the Concacaf Men’s Olympic Qualfiying Championship semifinals by registering a 4-0 win over the Dominican Republic at Estadio Akron, Sunday night.

The result, combined with Mexico’s 3-0 victory over Costa Rica in the second game of the doubleheader, boosted the Americans and El Tri into the semifinals. The Costa Ricans and Dominicans were eliminated.

Second-half substitutes Hassani Dotson scored twice and Djordje Mihailovic added a goal and an assist to move the Americans to a perfect 2-0-0 record and six points. They will meet Mexico in their final Group A match here Wednesday night.

“Hassani is a player that’s coming into his own,” Kreis said. “He showed us in January how hungry he was and how he was capable of so many different things as a central midfield player. He showed up to this camp, probably fitter than everybody else. He’s worked extremely hard. He’s had assists and goals and every almost every single training session. So, it’s really nice to see a player who is coming in a really good moment and is so hungry to help lead this team and push this team forward. So couldn’t be more pleased for the kid.”

“I think that their coach Jason was very smart, because at the same time we kind of were a little bit getting tired and, and at the same time he brought two or three of their of their I believe regular starters or one of their important players,” Dominican assistant coach Jonathan Himelfarb said. “That combination of two factors definitely was very tough to handle for us.”

The USA could not get its act together in the opening half. It had a couple of opportunities, but struggled.

“I felt that that we were just way too cautious about the game in the first half of the picture that they were presenting to us was extremely defensive five players in the back, nobody releasing in white spaces and both of our fullbacks were extremely hesitant about going forward,” Kreis said. “So it just didn’t add up or make any sense so we needed to get those players really. We needed to be looking for wide combinations, and we just weren’t get the job done so for me it was mostly about positioning, but also about intent and attitude.”

The US broke the scoreless tie on the hour through captain Jackson Yueill. The San Jose Earthquakes midfielder made a run into the six-yard box and redirected home a low cross from winger Sebastian Saucedo, giving the USA the lead it never relinquished.

“I really believe we should do better once we concede one goal,” Himelfarb said. “We need to react better, but I mean we’re in the process of growing.”

Dotson, Minnesota United midfielder, then took center stage during a five-minute span as he tallied in the 73rd and 78th minutes. Mihailovic, a CF Montreal midfielder, found Dotson after a run on the left flank for his first goal.

Dotson made it 3-0 in the 78th minute after again combining with Mihailovic. He collected a pass on the right-hand side of the box and finished past goalkeeper Johan Guzman.

Mihailovic scored his goal in the 90th minute off a feed from Orlando City SC winger Benji Michel on the right flank.

“Good luck to the U.S. It’s a good team,” Himelfarb said. “I know that if they get to the Olympics they can take one of the best U-23-24 teams of the world. So, good luck there. Their program is definitely growing.”