AS Roma chief Walter Sabatini was left frustrated with defeat to AC Milan.
Roma now risk missing out on second-place and automatic Champions League qualification.
"We'll talk to the Coach tonight or tomorrow morning and see what we can do to give a contribution to this team," Sabatini told Sky Sport Italia.
"We are challenging for a crucial target and this is not the right way to go about reaching it.
"A training retreat? It's a possibility. We'll discuss it with the Coach."