Michael Brown managed to get away from Tugay, Nils-Eric Johansson and Andy Todd in a 60-yard run before squaring for Robbie Keane to drill home the winner in the second half.
Hughes said: "We didn't start at the right tempo. We conceded a goal just as we were getting into the game, and it was a terrible goal to concede.
"We didn't deal with it at source, and it has cost us the game. Once they went ahead they got players behind the ball, and we didn't have enough guile or imagination to create any clear-cut chances.
"It was a frustrating night for us. We needed someone to get on the ball, to get out wide and have more overlaps - and we didn't see any of that.
"When you are in a situation like that you need players to grasp the nettle."
Blackburn manager Mark Hughes criticised his side for looking lacklustre and conceding a 'terrible' goal after our victory at Ewood Park.