NBC Sports executive producer Terry O’Neil said Mike Ditka’s appearance on this Sunday’s Super Bowl coverage does not mean the former coach will become a permanent member of the network’s coverage team.Speaking to reporters on a conference call, O’Neil said the network always looks for coaches or players to fill in when the situation warrants. “We certainly look for the right fit in situations,” O’Neil said. “Mike as a former Super Bowl winner is a good fit. It portends nothing.” Ditka, recently fired as head coach of the Chicago Bears, has made appearances on both NBC and CBS’s post-season coverage. If he doesn’t return to coaching, there is strong speculation that one of the networks will hire him for an on-air position. NBC, meanwhile, is looking for an analyst to replace former Giants coach Bill Parcells, who is leaving NBC to take over at the New England Patriots.