League One beckons for the Reds after the 2-1 defeat at QPR yesterday and chief executive Arthur knows that he and boss Gary Megson face a massive task to get Forest back into the Championship.
"We've got to make wholesale changes," Arthur told the BBC.
"We have used 36 players this season and even the ones who played against QPR will not be good enough to challenge in League One next year."
More reaction to come on Forest Mad over the next few days.