Nobody suggested just carrying on, infact
@Scout73 quite literally said we need to move it quicker. But attempting to overhaul the style of play mid season when you have recruited for a certain style is not possible at a high level.
O'Nien doesn't have the technical ability to play defensive midfield at the top end of the championship. He'd be fine out of possession but would cause major issues when we have the ball. He has a good passing range when he has time, and can carry the ball but thats not what we need in the middle. Look at the way Dan Neil receives the ball on the half turn, O'Nien can't do that.
Neil played him in midfield at the back end of the promotion season and then as soon as we were promoted he removed him from the position.