Volker Finke believes that his team did enough to get a point against Mexico in Natal.
Cameroon lost 1-0 on Friday and were fortunate that their opponents had two goals disallowed.
"We're very disappointed with the result - I think we deserved a draw," Finke told the press. "There's still all to play for, though, and we're going to head into the Croatia match with the intention of winning."
Cameroon will play Croatia before facing Brazil in their final Group A match.