Manager Phil Brown insisted he would not walk away from struggling Southend following their 3-0 loss at Rochdale.
Goals from Niall Canavan, Calvin Andrew and Nathaniel Mendez-Laing wrapped up a comfortable win for the home side, with Dale goalkeeper Josh Lillis left without a save to make.
"I'm not going to walk away from any situation," said Brown. "I'm here as a fighter and believe my changing room has got fight in it but today we didn't see that.
"Maybe I picked the wrong team. I hold myself fully responsible for the result.
"I've just levelled them the criticism of the away performances and the mentality of the team. The difference between last Saturday and Tuesday and then today is chalk and cheese. It's my job to get to the bottom of it.
"It was very frustrating. I felt as if this week with the work that we've done on and off the field of play, the results that we've been getting at Roots Hall, was almost a turning point.
"If it's personnel, I'll get rid of them. If it's not personnel then they'll get rid of me, quite simply, if the results continue like this away from home.
"This mentality has to change. I think I've got a good group, a strong group of players that are underachieving and I hold myself fully responsible for that."
Rochdale's fifth successive league win moved them into the play-off places, just a month after they were at the foot of League One without a win.
"I thought there was everything that you ask for as a manager in that performance, a lot of discipline, we played well and controlled the pace of the game and we controlled the opposition when they brought Niall Ranger on and started to go long," Dale manager Keith Hill said.
"So I was really pleased with every aspect of the game today. Good goals, a clean sheet - but it was the discipline of the side which delighted me, we have some young players out there and I thought they showed great maturity.
"The first win against Fleetwood at home was key to this run of form. We knew we'd been playing well but making mistakes and when you do that you become a bit anxious and anxiety shows in the performance.
"But once we had that first three points on the board it was a case of revisiting what we've always done, which is get results."