Premise: Robert N. M. "Blade" Thornbladh (born September 19, 1952 in Cleveland, Ohio) is a former American football player, coach and radio color commentator. He played for the Michigan Wolverines football team from 1971 to 1973 and was an assistant coach at Michigan from 1980 to 1986. He later served as the color commentator for Michigan football broadcasts on WJR radio.
Hypothesis: Robert Thornbladh has always had a sports related job.