Speaking after South Africa's 0-0 draw with Senegal at the Moses Mabhida Stadium in Durban on Wednesday, Mphela, who was joined in attack by May Mahlangu and supported by Thulani Serero and Steven Pienaar, created and wasted numerous goalscoring opportunities.
Mphela is adamant the country possesses quality strikers but they lack a measure of composure in key areas of the field.
He told Football365.co.za: "It is a big problem for us and it is something that we really need to address urgently.
"The truth is we are not composed when we are in the opponent's box so we tend to rush our shots and in the end we are not able to get the goals we need to win matches. I hope the goals are going to come very soon, because for us this is really not a good feeling.
"Like I said, it is just a matter of making sure we don't rush. I do believe that we have the strikers in the country who are capable of scoring a lot of goals for us, but this is a lesson and something we have to avoid in future games.
"I think we are playing well, but the only thing missing is getting the goals we need."