Jenson Metcalfe's second-half strike gave high-flying Bradford a 1-0 win over a managerless Port Vale at Valley Parade, condemning the Valiants to a 12th game without a win.
First-team coach Jamie Smith took charge of League One's bottom club following the departure of manager Darren Moore on Sunday, but he could not inspire the points his side badly needed.
Vale Begin Brightly
Having been beaten 5-0 at Huddersfield on Boxing Day, Port Vale began brightly here, with Devante Cole and Jayden Stockley proving a handful for the Bradford defence.