The coaching staff accepted their part in the defeat, noting the need for internal review ahead of the biggest game on the South African calendar.
"So, sometimes, we need to criticise ourselves [as the technical team] and analyse what we did wrong, and when we are not good, admit to that and rectify our mistakes," Ben Youssef added.
Chiefs must now pick themselves up quickly as they prepare for the Soweto Derby against Orlando Pirates this Saturday.
With their league title aspirations dented and the fans demanding a response, the pressure will be on Ben Youssef and his squad to deliver a result at a packed FNB Stadium.