I suspect Tex is thinking about the 2013 team that unexpectedly went belly up when Rodgers broke his collar bone. But McGinn jinxed that team by predicting preseason that it would hold up just fine if the unthinkable were to happen and Rodgers go down. He knows better than to do that with this team. Rather than talk about the roster as a whole, let's look at position units.

OL: clearly one of the best if not the best in pass blocking, and certainly at least adequate as run blockers. Check.
WR: much improved from a year ago thanks to return of Nelson, maturation of Adams and late season return to health of Cook. I would say that this unit is at least above average.
RB: with a healthy Lacy this still would have been a position without much depth because of Starks's sudden decline. Montgomery and Ripkowski are at least serviceable as running options, and the struggle to find a running back after Lacy went down had the salutary effect of forcing McCarthy to redesign the passing game in a way that continues to pay benefits.

DL: One productive vet (Daniels), another serviceable vet (Guion) and two rookies who show potential. The unit doesn't have good depth but they have four guys who can at least contribute something.
OLB: Two good starters and a bunch of projects. Depth is not a strength.
ILB: Two serviceable young starters, one decent sub and a strong safety. Depth is mediocre.
Secondary: When Shields went down and Randall and Rollins got hurt or regressed, Capers invented the amoeba defense starring Micah Hyde and a bunch of F.D. safeties nobody's ever heard of.
Special teams: the patience that TT showed with Crosby looks brilliant now, and Schum has been a pleasant surprise as punter and holder. (Has anyone noticed a single bad hold this year?)

Overall the talent level and depth of this team seem to be better than average.