Answer the question at the end by quoting:

Joe Jackson Gibbs (born November 25, 1940) is a former American football coach, current NASCAR Championship team owner, and former NHRA team owner. He was the 20th and 26th head coach in the history of the Washington Redskins (1981-1992, 2004-2007). Well known for his long hours and work ethic, Gibbs constructed what Steve Sabol has called, "The most diverse dynasty in NFL history", building championship teams with many players who have had mediocre to average careers while playing for other NFL teams. During his first stint in the National Football League, he coached the Redskins for 12 seasons and led them to eight playoff appearances, four NFC Championship titles, and three Super Bowl titles.
Throughout his retirement, many NFL owners approached Gibbs hoping to lure him out of retirement, but to no avail. Some owners even offered to move his entire NASCAR racing team to their team's city if he came back. The only team he seriously considered coming back for was the Carolina Panthers when they first joined the NFL as an expansion in 1995. However, he did not believe he would be able to manage his time between his race team and coaching. In 1999, he was part of a group that was trying to buy the Redskins but ultimately failed. In 2002, Gibbs and a small group of investors bought five percent of the Atlanta Falcons from owner Arthur Blank for $27 million. It wasn't until late 2003 when Gibbs really started to catch the football fever again. Blank and his general manager, Rich McKay moved quickly to interview him for the Falcons' vacant head coaching position due to the firing of Dan Reeves. However, when Gibbs found out that Steve Spurrier resigned as the Redskins' head coach, they realized that even though Gibbs was one of the team's minority owners, his loyalty still lies with the Redskins. It is well documented that Daniel Snyder had been turned down by Gibbs several times before. On December 31, 2003, Snyder's private plane (Redskin One) was spotted at an airport outside of Charlotte, North Carolina. After spending 11 years in retirement from the NFL, Snyder successfully lured Gibbs out of retirement. Gibbs' change of heart was quite a surprise to the football and NASCAR worlds. During his January 7 press conference, a visibly emotional Snyder welcomed him back. Gibbs then stated that even though he enjoyed NASCAR immensely, he had missed coaching in the NFL. And although he had fielded offers in the past, he could only see himself coaching for the Redskins. Because of his credibility, Gibbs was able to assemble one of the largest and most experienced coaching staffs in the NFL. Many coaches from his previous tenure with the team returned with Gibbs as well, including offensive line coach/assistant head coach Joe Bugel, offensive coordinator Don Breaux, quarterbacks coach Jack Burns, and tight ends coach Rennie Simmons. Gibbs was able to lure former Buffalo Bills head coach Gregg Williams to join the Redskins to run the defense and hired one of his former running backs, Ernest Byner to serve as running backs coach. Overall, many of his assistant and position coaches were either former head coaches and/or held top assistant coaching positions with other NFL teams. Gibbs left his racing team in the hands of his eldest son, J.D., while his other son, Coy, joined him as an assistant with the Redskins.

What is significant about his second stint with the Redskins?

Because of his credibility, Gibbs was able to assemble one of the largest and most experienced coaching staffs in the NFL.

Answer the question at the end by quoting:

Muddy Waters' birthplace and date are not conclusively known. He stated that he was born in Rolling Fork, Mississippi, in 1915, but it is believed to be more likely that he was born in Jug's Corner, in neighboring Issaquena County, in 1913. Recent research has uncovered documentation showing that in the 1930s and 1940s, before his rise to fame, the year of his birth was reported as 1913 on his marriage license, recording notes, and musicians' union card. A 1955 interview in the Chicago Defender is the earliest in which he stated 1915 as the year of his birth, and he continued to say this in interviews from that point onward.
In August 1941, Alan Lomax went to Stovall, Mississippi, on behalf of the Library of Congress to record various country blues musicians. "He brought his stuff down and recorded me right in my house," Muddy recalled for Rolling Stone magazine, "and when he played back the first song I sounded just like anybody's records. Man, you don't know how I felt that Saturday afternoon when I heard that voice and it was my own voice. Later on he sent me two copies of the pressing and a check for twenty bucks, and I carried that record up to the corner and put it on the jukebox. Just played it and played it and said, 'I can do it, I can do it.'" Lomax came back in July 1942 to record him again. Both sessions were eventually released by Testament Records as Down on Stovall's Plantation. The complete recordings were reissued by Chess Records on CD as Muddy Waters: The Complete Plantation Recordings. The Historic 1941-42 Library of Congress Field Recordings in 1993 and remastered in 1997. In 1943, Muddy Waters headed to Chicago with the hope of becoming a full-time professional musician. He lived with a relative for a short period while driving a truck and working in a factory by day and performing at night. Big Bill Broonzy, then one of the leading bluesmen in Chicago, had Muddy Waters open his shows in the rowdy clubs where Broonzy played. This gave Muddy Waters the opportunity to play in front of a large audience. In 1944, he bought his first electric guitar and then formed his first electric combo. He felt obliged to electrify his sound in Chicago because, he said, "When I went into the clubs, the first thing I wanted was an amplifier. Couldn't nobody hear you with an acoustic." His sound reflected the optimism of postwar African Americans. Willie Dixon said that "There was quite a few people around singing the blues but most of them was singing all sad blues. Muddy was giving his blues a little pep." Three years later, in 1946, he recorded some songs for Mayo Williams at Columbia Records, with an old-fashioned combo consisting of clarinet, saxophone and piano; they were released a year later with Ivan Ballen's Philadelphia-based 20th Century label, billed as James "Sweet Lucy" Carter and his Orchestra - Muddy Waters' name was not mentioned on the label. Later that year, he began recording for Aristocrat Records, a newly formed label run by the brothers Leonard and Phil Chess. In 1947, he played guitar with Sunnyland Slim on piano on the cuts "Gypsy Woman" and "Little Anna Mae". These were also shelved, but in 1948, "I Can't Be Satisfied" and "I Feel Like Going Home" became hits, and his popularity in clubs began to take off. Soon after, Aristocrat changed its name to Chess Records. Muddy Waters's signature tune "Rollin' Stone" also became a hit that year.

What did he do in Chicago
hope of becoming a full-time professional musician.