The 1999 commissioner of the IFL was widely recognized as the greatest what?
Indoor Football League (1999–2000):  NFL Hall-of-Famer Kellen Winslow was brought in as commissioner. Kellen Winslow:  A member of the Pro Football Hall of Fame (1995), he is widely recognized as one of the greatest tight ends in the league's history.
greatest tight ends in the league's history