If you have to lose a player for the season, isn't it better to find a replacement now while the best recently cut players are still on the sidelines waiting for their chance? If we lost Pouncey in week 5, would Velasco still be available, or would some other team that already lost a lineman have picked him up? Would Dwyer have been available in a few weeks?
Also, I would rather start a new guy and get the kinks out now than starting all over in the middle of the season. Losing Foote hurts, but now his replacement has more time to learn the calls and get better throughout the season.
Just looking for a silver lining in the hand that was dealt to the Steelers.