It's an interesting question, because this freefall has been more a process than a sudden event.  I still can't wrap my head around an offense running on fumes (NYG) coming into Mile High beating the Broncos.  They had ONE legit weapon in the receiving game, and that was a TE.  They couldn't and didn't cover him. That was when I realized there's a combo of factors in play here that is disturbing. 

They still haven't fixed this.  The Eagles didn't even have their starting TE in the game!  Two backups, one a longtime journeyman named Brent Celek, mugged the secondary.  

So I say there's "cause for concern".  His name is Gronk, and these coaches aren't good enough to gameplan around him.