"(Ryan was) like a dad, like a brother, man," Reed told ESPN, in comments reported by The Baltimore Sun. "We wanted Rex as the head coach in Baltimore. We did not want him to leave. It hurt when he left (in 2009). We knew he was a great coach. There was a reason why that defense was the way it was."
Reed didn't speak negatively of Harbaugh, but he heaped praise on Ryan, whom Harbaugh retained for the 2008 season.
"I would play anywhere with Rex -- in a dark alley, on the street, in high school football, sandlot, anywhere -- because he makes it fun," Reed said. "He loves this game. He truly loves this game, and there's a reason why those guys in New York back him the way they do."
Reed, 32, also discussed his playing future, admitting that recent injuries have him wondering how many years he has left in the NFL.
"I don't want to be like these guys having neck surgery and then you got to have another surgery just to continue to play this game," said Reed, also a five-time All-Pro. "I love this game, but I love myself more."