The one strange part of the show was it seemed half of tony's capo were rats (Raymond Curto, Carlo Gervasi, Jimmy Altieri). In real life, I think I can count on two hands the number of rats that were capos, especially capos wearing wires.
It's pretty unusual, normally you see associates or made guys, and the higher ranking guys only get flipped after charges are brought against them and they are facing hard time unless they turn state's evidence and testify in the upcoming trial.
So in the end these capos as rats plot points were strange. Additionally, they would have sunk tony in ten seconds if there was really a capo in tight, small family like tonys that would have been willing to flip.