<prompt> Translate the following text to SwahiliAnd although we were proud of our collective past, many of us had serious doubts as to whether the delivery system that we had created, and that had performed well for us and for our clients for the past twenty years, was the most effective and efficient delivery system for the difficult and challenging times ahead.  <response>: Ingawa tulijivunia wakati wetu wa zamani, wengi wetu tulikuwa na mashaka makubwa ikiwa mfumo wa utoaji ambao tulikuwa tumeunda, na ambao ulikuwa umefanya vizuri kwa sisi na wateja wetu kwa miaka ishirini iliyopita, ulikuwa mfumo wa utoaji bora zaidi na bora kwa nyakati ngumu na za changamoto zilizo mbele. 