According to Ed, he lasted two weeks at the Steelers' training camp and was ousted in the second round of cuts. Chuck Noll offered to make a call to get him into the Eagles' camp, but he declined and ended his football career.
In college, he got flagged for a hit out of bounds on Roger Staubach, and nearly got into a fight with Jim Lynch's brother who was Staubach's teammate.
The funny thing is that Ed mentioned in a couple of interviews that he was cut the year before Terry Bradshaw arrived, which matches the timeline where he said that it was Chuck Noll's first year (1969). Then in a different interview Terry swears that he remembered Ed well from his rookie training camp. They never overlapped.