For their part, Rio officials are expected to promise that preparations are on course after a late start. Privately, they'll try to soothe concerns about a slowdown in landing local sponsorships, worries over hotel space and transportation and recent protests over big spending on major sports events.
International Olympic Committee inspectors, led by former hurdles champion Nawal El Moutawakel, will be at work Sunday and Monday. During the last visit six months ago, IOC executive director Gilbert Felli said: "We don't have any yellow card to send to Rio."
Any such warning this time would be a reminder of the 2004 Olympics in Athens when then IOC President Juan Antonio Samaranch issued his famous "yellow card" reprimand to Greek organizers.
At least two members of the coordination commission—Richard Carrion and former Olympic gold-medal swimmer Alex Popov—have said things need to move quicker.
"There are games that are better prepared and games that give us a little more trouble," Carrion said.
These games are still three years away and sure to stay off the radar until Brazil hosts soccer's World Cup next year, giving local organizers room to maneuver.
This is a challenging moment for South America's largest country, which is trying to organize two mega-events and is facing pushback from citizens who question spending so much on sports events, particularly in a country with vast inequality, high prices and a slowing economy.
Brazil is spending about $13.3 billion of largely public money on the World Cup. Olympic organizers are expected to announce their budgets in a few months, but public spending could be similar to that of the World Cup—or higher.
Leo Gryner, chief operating officer of the Rio games, acknowledged in a recent interview with The Associated Press that organizers were six to eight months late in starting to build venues.
Gryner said that $700 million in public money may be needed to balance the operating budget. This is the budget to run the games themselves and is expected to be as much as $4 billion when it's announced. He attributed any shortfall to inflation, the sluggish economy and a struggle to sell local sponsorships.
Gryner said the capital budget—a mix of public and private money aimed at building supporting infrastructure for the Olympics—could be 35 percent above the $11.6 billion listed in the original bid.
Sebastian Coe, who headed the 2012 London Olympics, is expected to be in Rio this year to brief officials about what to expect the next two years.
"I still instinctively believe Rio will be a really good games," Coe said. "They will be different. There's a different level of expectation. With every Olympics, they always get there. Some are probably a little bit harder. The IOC will privately tell you some of those journeys are a little bit tougher."
Gryner singled out accommodations as a top priority.
"We will have as many rooms as we need," he said.
Soaring hotel prices are already a problem for the World Cup. The Brazilian government and the justice ministry reportedly are looking into reports that some hotels are gouging and have raised rates by 500 percent.
There are also doubts about Brazil's airports. The facilities in Sao Paulo and Rio are rated among the hemisphere's worst, which inspectors have surely noticed traveling through the country. Airports could also face problems accommodating a surge in private jets used by many visitors to the World Cup and Olympics.
Another problem area is the Deodoro Olympic Park, one of four core areas for the games. This run-down northern part of the city has long been neglected and will host equestrian events and a half-dozen others.
"It's a renovation of an area that hadn't been getting any attention and lacked sanitation systems for many, many years," Gryner said.
"Now that we have all the construction starting, and the last (place) will be Deodoro," Gryner added. "We have plans to show them (IOC inspectors), and we have the exact starting date, and finishing date for every venue. We can say exactly where we are."
The other core areas for the games include: the Barra area, located in the south and miles away from the city's famous Ipanemaand Copacabana beaches; the area around Rio's Maracana stadium near the city center; and the Copacabana area.
Soccer will be played in Rio, Sao Paulo, Brasilia, Belo Horizonte and Salvador.
Rio officials are expected to tell IOC officials that grass will be going down later this year on the new golf course, which will mark the return of the sport to the Olympics.
In addition to the pace of preparations, IOC officials may face questions about the following:
—WADA's suspension of an anti-doping laboratory in Rio. The lab, the only WADA-accredited facility in Brazil, can reapply for accreditation, but the revocation is an embarrassment to games officials.
—The resignation several weeks ago of Marcio Fortes, who headed the public body coordinating planning for the games among the local, state and national governments. Fortes, who handed in his resignation to Brazilian President Dilma Rousseff, headed the Olympic Public Authority and complained he had been marginalized in decision making. Rio Mayor Eduardo Paes has said coordination is going well and the position is not needed.
—The use of the games to upgrade some of the city's transportation infrastructure. The three biggest projects are: a 9-mile extension of the city's subway system into the Barra area; adding four high-speed bus lanes; and renovating a decaying port.
"There is tremendous pressure with the Olympics," Gryner said. "It's a huge project and we have very big ambitions for the transformation of the city of Rio. We are not losing the opportunity of what the Olympics can bring the city."
Follow Stephen Wade at http://twitter.com/StephenWadeAP