In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Let me give you an example: Passage: Nearing London, Oliver encounters Jack Dawkins, a pickpocket more commonly known by the nickname the "Artful Dodger", and his sidekick, a boy of a humorous nature named Charley Bates, but Oliver's innocent and trusting nature fails to see any dishonesty in their actions. The Dodger provides Oliver with a free meal and tells him of a gentleman in London who will "give him lodgings for nothing, and never ask for change". Grateful for the unexpected assistance, Oliver follows the Dodger to the "old gentleman's" residence. In this way Oliver unwittingly falls in with an infamous Jewish criminal known as Fagin, the gentleman of whom the Artful Dodger spoke. Ensnared, Oliver lives with Fagin and his gang of juvenile pickpockets in their lair at Saffron Hill for some time, unaware of their criminal occupations. He believes they make wallets and handkerchiefs.
The answer to this example can be: Who believes Fagin's gang make wallets and handkerchiefs?.
Here is why: This question is based on the following sentence in the passage "He believes they make wallets and handkerchiefs". It evaluates the understanding that the pronoun "he" refers to name "Oliver". You can ask questions like this one about most pronouns in a paragraph.

OK. solve this:
Passage: Big Star was an American rock band formed in Memphis, Tennessee, in 1971 by Alex Chilton, Chris Bell, Jody Stephens, and Andy Hummel. The group broke up in early 1975, and reorganized with a new lineup 18 years later following a reunion concert at the University of Missouri. 
In its first era, the band's musical style drew on the Beatles, the Rolling Stones, and the Byrds. Big Star produced a style that foreshadowed the alternative rock of the 1980s and 1990s. Before it broke up, Big Star created a "seminal body of work that never stopped inspiring succeeding generations," in the words of Rolling Stone, as the "quintessential American power pop band," and "one of the most mythic and influential cult acts in all of rock & roll".Big Star's first album—1972's #1 Record—was met by enthusiastic reviews, but ineffective marketing by Stax Records, and limited distribution stunted its commercial success. Frustration took its toll on band relations: Bell left not long after the first record's commercial progress stalled, and Hummel left to finish his college education after a second album, Radio City, was completed in December 1973. Like #1 Record, Radio City received excellent reviews, but label issues again thwarted sales—Columbia Records, which had assumed control of the Stax catalog, likewise effectively vetoed its distribution. 
After a third album, recorded in the fall of 1974, was deemed commercially unviable and shelved before receiving a title, the band broke up late in 1974. Four years later, the first two Big Star LPs were released together in the UK as a double album. The band's third album was finally issued soon afterward; titled Third/Sister Lovers, it found limited commercial success, but has since become a cult classic. Shortly thereafter, Chris Bell was killed in a car accident at the age of 27.
During the group's hiatus in the 1980s, the Big Star discography drew renewed attention when R.E.M. and the Replacements, as well as other popular bands, cited the group as an influence. In 1992, interest was further stimulated by Rykodisc's reissues of the band's albums, complemented by a collection of Bell's solo work.In 1993, Chilton and Stephens reformed Big Star with recruits Jon Auer and Ken Stringfellow of the Posies, and gave a concert at the University of Missouri. The band remained active, performing tours in Europe and Japan, and released a new studio album, In Space, in 2005. Chilton died in March 2010 after suffering from heart problems. Hummel died of cancer four months later. These deaths left Stephens as the sole surviving founding member. Big Star was inducted into the Memphis Music Hall of Fame in 2014.
Since December 2010, several surviving members have appeared in a series of live tribute performances of the album Third/Sister Lovers, under the billing "Big Star's Third". As of 2017, that project has remained active.
Answer:
What is the first name of the person who left not long after the first record's commercial progress stalled?