Roddy Collins's Floriana suffered a crushing 6-0 defeat in the derby clash with Valetta in the Maltese Premier League on Saturday.
It was the second game in charge for the Dubliner, having a secured a point in the opening match of the season against Qormi.
Jordi Cryuff hit a brace for Valletta, who were knocked out of the Europa League by St Patrick's Athletic earlier this year.