The Blues' 26-16 loss on Wednesday saw Queensland secure their 10th series win in 11 years, with the positions of NSW veterans Gallen, Greg Bird and Michael Jennings coming under scrutiny in the aftermath.
Flanagan said the criticism of Gallen was unwarranted and believes he'll be one of the first players picked for July 13's Origin III despite a number of prospective Blues back-rowers waiting in the wings.
