If Mikel Arteta thought starting Ethan Nwaneri may ease the clamour for him to play more, then he needs to think again.Just over 5,500 Arsenal supporters made the journey here to Preston on a cold Wednesday night and, in the end, it was Nwaneri who ensured it was worth the trip.Even in a side stacked with first-team regulars, it was Nwaneri who shone brightest of all as Arsenal cruised into the quarter-finals of the Carabao Cup with a 3-0 victory.