Motherwell manager Stuart McCall bemoaned his side's lack of desire in
"Just not good enough and we need to be better," he told BBC Radio Scotland.
Everywhere throughout the park, they were better than us, stronger than us, wanted it more and from a manager you don't want to say those things.
"I don't think anybody in our side got pass marks whatsoever. I don't take anything away from Ross County because they were, in spells, very good."
Recent signing James McFadden came on as a substitute and McCall felt the forward "showed some glimpses" of what he can offer in attack.
"It's not all about James, he needs to get game time but we need to put a team out on Wednesday night against Celtic that can get a result," added McCall.
"The players owe the supporters, myself and the staff a performance. They owe themselves a performance because that wasn't acceptable.
"We've got to make sure it is a one-off because we can't have performances like that.
"I can always accept people just not having the best of games but I just thought there was a lack of urgency and a lack of real desire and stomach."