When looking into the Steelers' depth at every position throughout this series, it becomes obvious how the organization has built an impressive starting roster. Put an emphasis on starting roster. The depth at certain positions leaves a lot to be desired.
With that said, not all positions are created equal in this regard. Look at the wide receiver position and the tremendous depth there. Then look at the safety position, and you quickly realize depth there is lacking.
No NFL roster is complete from top to bottom. Every team has positions where, if they suffer an injury, they will be crippled.