Fulham suffered a hammering at Derby County on Saturday as they fell to their fourth straight Championship defeat.
Skipper Scott Parker had equalised for the Whites 10 minutes into the second half and the visitors were on the front foot.
But two goals in as many minutes on the hour mark from Craig Bryson and Chris Martin put the hosts in control.
Fulham manager Felix Magath said: "That was the worst performance but the good thing about today is that it is clear we have to change something.
"A few minutes after the game is not the time to talk about what we will change but for sure there will be new players in."