No. Many posters, including myself have shown why they are not. However, it's not that big of a deal as no defense in the NFL is elite. Every defense has good players at one or two levels, but they all have glaring flaws that show up at some point. Last year, the Pats major flaws were defending elite WR's at the boundaries and the middle of the field.
I like the potential of the pass rush this year with the combo of Judon, Uche, Wise, Barmore and White. I think they eclipse 50 sacks again for the 2nd consecutive year. Gonzalez is the X Factor in the secondary along with who can defend the middle of the field.