"Billy has been very impressive in training and very patient waiting for his chance," Hodgson told the WBA website.
"So it wasn't a difficult decision to bring him in because Nicky hasn't had the very best of starts to this season, although he remains a very good player.
"We like Nicky very much, and believe in him, but one or two things have happened down his side that we've been unhappy with, and he has been unhappy with, and Sunday was a chance to give Billy a go and see what he could do.
"I thought he took the opportunity and showed us that he's capable - like we thought he was.
"But just like Nicky has faced competition from him, Billy, in turn, will face competition from Nicky and Joe Mattock."