Torquay United manager Paul Cox says he has some "tough decisions" to make following his side's 3-2 National League loss to Eastleigh.
The Gulls fell 3-0 behind to the Spitfires before scoring two goals in the last six minutes and he was unhappy with their defensive display.
"The way I have built my team is to be resolute at the back and keep clean sheets," Cox, 43, told BBC Radio Devon.
"Individuals and small groups have to understand that is what we are about."
He continued: "We go into our next phase now of the early stages of this season where I have got to make some tough decisions about where we go from here."
Torquay have not kept a clean sheet since their 1-0 victory over Macclesfield on the first day of the season.
And in the last six matches, the Gulls have conceded 14 goals, including three at home to Cheltenham.
"We have to set our stall out to defend well and keep a clean sheet and go from there but we did not defend as a unit.
"We cannot keep on chasing three goals, that is the basics of it. You have to stop the ball going into your own net to give yourself a fighting chance," the former Mansfield boss added.