Question: What is the birthdate of this former American football player in the NFL, widely recognized as one of the greatest tight ends in the league's history, who was brought in as commissioner of the Indoor Football League?

<P0-S0> Jon William Embree (born October 15, 1965) is an American football coach and former player who is the tight ends coach for the San Francisco 49ers of the National Football League (NFL). <P0-S1>  He is a former head coach at Colorado. <P0-S2>  Prior to that, he was the tight ends coach for the Washington Redskins of the National Football League. <P0-S3>  As a player, he spent two seasons in the NFL with the Los Angeles Rams as a tight end until an injury ended his career. <P0-S4>  He was selected in the sixth round of the 1987 NFL Draft (166th overall) by the Rams, after playing college football at Colorado. <SEP> <P1-S0> Jimmie Giles, Jr. (born November 8, 1954) is a former professional American football player who was drafted by the Houston Oilers in the third round of the 1977 NFL Draft. <P1-S1>  A 6 ft , 238 lb tight end from Alcorn State University, Giles played in 13 NFL seasons from 1977 to 1989. <P1-S2>  A four-time Pro Bowl selection, Giles's career flourished as a member of the Tampa Bay Buccaneers during the early and mid-1980s, despite being used mainly as a blocker during several seasons in which he fell into disfavor with the coaching staff. <P1-S3>  Giles' benching coincided with a training-camp holdout, the first in Buccaneers history by a player under contract, and the difficult Doug Williams negotiations that resulted in his departure for the USFL. <P1-S4>  Giles' four touchdowns against the Miami Dolphins on October 20, 1985, tied Earl Campbell's record for the most touchdowns by a Dolphins opponent, and is still (as of 2010) the Buccaneers' single-game record. <P1-S5>  Dolphins coach Don Shula said of the performance, "I can't remember any tight end dominating us that way". <P1-S6>  Buccaneer teammate Gerald Carter said that Giles could have been "one of the best all-time tight ends, if they'd used him more". <P1-S7>  In 1988 with the Philadelphia Eagles, he caught a touchdown on one of the most memorable plays in Monday Night Football. <P1-S8>  Quarterback Randall Cunningham escaped a tackle from Giants linebacker Carl Banks and threw a touchdown to Giles. <SEP> <P2-S0> The Indoor Football League (IFL) began in 1999 as an offshoot of the troubled Professional Indoor Football League. <P2-S1>  Keary Ecklund, the owner of the Green Bay Bombers and Madison Mad Dogs, left the PIFL after its first, financially troubled, season to start his own league. <P2-S2>  Unlike the PIFL, the IFL was an "entity league"; teams were owned by the league and franchised out to management groups. <P2-S3>  NFL Hall-of-Famer Kellen Winslow was brought in as commissioner. <P2-S4>  The league was successful enough for a major expansion in 2000. <P2-S5>  Expansion was done regionally to cut down on travel expenses. <P2-S6>  Hence, the majority of the teams were in the Midwest. <SEP> <P3-S0>  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. <P3-S1>  Winslow played his entire NFL career from 1979 to 1987 with the San Diego Chargers after being selected in the first round of the 1979 NFL Draft. <P3-S2> Kellen Boswell Winslow Sr. (born November 5, 1957) is a former American football player in the National Football League (NFL). <P3-S3>  He played college football for the University of Missouri, where he was a consensus All-American. <P3-S4>  He was also inducted into the College Football Hall of Fame (2002).