"The level of Qatar that we have seen in the World Cup is not the real level.
"(Cristiano) Ronaldo had to work, work, work to make it.
You need to develop these players, these Qataris in the right way, but we will see what happens after the World Cup," he said.
With that in mind, the Qatar Stars League will start again on Thursday, four days after the World Cup final, with Lerin's Al Shamal in action against Al Wakrah on Friday.
"I think it will be difficult for them to play in another World Cup, really difficult, but at the same time now the rules of the World Cup are changing and there are more teams," Lerin explained.