Missed tackles and drops have a lot in common, though the former has become far more common. In either case, they are most noticed when their occurrence impacts a big play. For the latter, it is typically allowing one to occur. As for the former—it will prevent one from happening altogether.
The Pittsburgh Steelers have been one of the more sure-handed teams over the years, with the exception of Sammie Coates of course, and Martavis Bryant’s bouts. While not all of their targets are renowned for their soft hands, they do well enough as a group that it’s rarely a concern.