He did not see it coming , they were all smiling in his face and plotting behind his back.
As much as they hung with Jr. and kissed his ass it did not matter cos when Chuckie was knock down Nick did not protect himself from a uprising and of course he never would thought that the entire family would be locked up all at once.

Trust me Skinny story is a perfect storm he should be dead ten times over but he he was helped by every possible entity weather law enforcement or stupid gangsters or bad shots he is still there.

I still say Phil should have come out and killed him and I don't doubt that he had to hold himself back.