Lee Wallace was sent off in the 50th minute, but we held on and competed until a final ten minutes of madness saw us concede three unanswered goals and we now find ourselves 16th in the table six points off the play-off spots.
Forest meanwhile look like a team on the rise, and I would be stunned if they are not at least in the top six by the end of the season.
Warburton, though, would not blame the players for the capitulation and insisted that we win and lose as a team, but he was furious that we simply did not win headers, tackles, and gave the ball away too cheaply.
This awful run we find ourselves on continues, and we now face a Derby County team boosted by the arrival of Wayne Rooney.
Was this our worst performance of the season?
Yes, we were dreadful
No, we were bad but have played worse this year
We must improve, or the positive early season form will be forgotten about, and Warburton could find his job under threat.