O'Neill meanwhile could not name a full quota of substitutes for last week's comeback 2-2 draw with Fulham.
O'Neill said: "I think QPR have decided to really go for it. They spent heavily in the January window because they still felt there was a chance of staying in the Premier League.
"It is entirely their prerogative to do that and time will tell if it works.
"What they have done with those additions is they have given themselves an immeasurably better chance of staying up. They will feel they are within touching distance and it is all to play for."