I believe it was Peyton, not Parcells, that saw something in Romo. In fact, Parcells was still stuck on the family reunion with Drew Bledsoe.
You may be right. Parcells is big on players he knows and trusts and has coached before.
He wouldn’t trust an undrafted rookie unless he had to.
But Bledsoe had the distinction of getting hurt twice and paving the way for Brady and Romo.