"I do think this year it is pretty certain he is not going to be doing anything for us. I think he'll probably go into retirement and see how it feels," Irsay said.
Moore has not officially retired, but his contract expired after last season. Irsay did, however, keep the door open for Moore to return in some capacity down the line.
"When I talked with Tom, he was of the mindset that it's time for some of the young guys he trained, and he wants them to have that chance," Irsay said. "But I wouldn't rule out him doing something for us in the future."
Moore served under three head coaches in Indianapolis -- Jim Mora, Tony Dungy and current coach Jim Caldwell. Moore has overseen Peyton Manning's entire career, beginning when the Colts selected the quarterback with the No. 1 overall pick in the 1998 NFL Draft, and together, they operated one of the league's top offenses.
Moore's name has been removed from the Colts' official website. Clyde Christensen was promoted to offensive coordinator last year.