Which head coach has the most wins in NFL history, with 347?

In which city is the NFL Scouting Combine traditionally held? In which city did the NFL begin playing regular-season International Series games in 2007? Which coach is the namesake of the Super Bowl trophy? Which team did Vince Lombardi lead to victories in the first two Super Bowls? Which head coach won six Super Bowls with the New England Patriots? Which coach led the Dallas Cowboys for their first 29 seasons? Which coach led the Pittsburgh Steelers to four Super Bowl wins in the 1970s? Which coach built the 49ers dynasty of the 1980s with the "West Coast offense"?