I think the only position Gannon could break into first grade is for TMM. Gannon seems to be versatile enough to play all the back row positions and at pinch centres & five eight ideal for the utility role that Martin currently plays.
They did with EIT who played the trial against Melbourne but he’s more of workforce than an explosive back rower. Fatialofa’s form in NSW Cup and ability to cover back row, centre has left Morgan surplus to requirements for 26.