Airports, accommodation and transportation are on Fifa's agenda for World Cup 2014 as Valcke admits to issues regarding progress with modernisation
Valcke, who was speaking at the Fifa congress in Zurich where Sepp Blatter is running unopposed in the presidential elections, has previously criticised preparations for the slow pace which has hampered progress.
Yet, despite claiming Fifa is working hard to ensure everything is on course, Valcke, who is responsible for overseeing the tournament is delivered on time, admits there are problems.
"We have the full support of the new president of the country [Dilma Rousseff] which gives us confidence in the many problems we have to face which are airports, accommodation and transportation," Valcke said.
"We are working very well with the organising committee and Ricardo Teixeira."
Stadiums have also been hit by delays, but Valcke insists developments are in sight.
"We have been able to finalise with most of the cities about their stadiums," he concluded.