Problem: Background: MC5 was an American rock band from Lincoln Park, Michigan, formed in 1964. The original band line-up consisted of vocalist Rob Tyner, guitarists Wayne Kramer and Fred "Sonic" Smith, bassist Michael Davis, and drummer Dennis Thompson. "Crystallizing the counterculture movement at its most volatile and threatening", according to AllMusic critic Stephen Thomas Erlewine, the MC5's leftist political ties and anti-establishment lyrics and music positioned them as emerging innovators of the punk movement in the United States.
Context: The origins of MC5 can be traced to the friendship between guitarists Wayne Kramer and Fred Smith. Friends since their teen years, they were both fans of R&B music, blues, Chuck Berry, Dick Dale, The Ventures, and what would later be called garage rock: they adored any music with speed, energy and a rebellious attitude. Each guitarist/singer formed and led a rock group (Smith's Vibratones and Kramer's Bounty Hunters). As members of both groups left for college or straight jobs, the most committed members eventually united (under Kramer's leadership and the "Bounty Hunters" name) with Billy Vargo on guitar and Leo LeDuc on drums (at this point Smith played bass), and were popular and successful enough in and around Detroit that the musicians were able to quit their day jobs and make a living from the group.  Kramer felt they needed a manager, which led him to Rob Derminer, a few years older than the others, and deeply involved in Detroit's hipster and left-wing political scenes. Derminer originally auditioned as a bass guitarist (a role which he held briefly in 1964, with Smith switching to guitar to replace Vargo and with Bob Gaspar replacing LeDuc), though they quickly realized that his talents could be better used as a lead singer: Though not conventionally attractive and rather paunchy by traditional frontman standards, he nonetheless had a commanding stage presence, and a booming baritone voice that evidenced his abiding love of American soul and gospel music. Derminer renamed himself Rob Tyner (after Coltrane's pianist McCoy Tyner). Tyner also invented their new name, MC5: it reflected their Detroit roots (it was short for "Motor City Five'). In some ways the group was similar to other garage bands of the period, composing soon-to-be historic workouts such as "Black to Comm" during their mid-teens in the basement of the home of Kramer's mother. Upon Tyner's switch from bassist to vocalist, he was initially replaced by Patrick Burrows, however the lineup was stabilised in 1965 by the arrival of Michael Davis and Dennis Thompson to replace Burrows and Gaspar respectively.  The music also reflected Smith and Kramer's increasing interest in free jazz--the guitarists were inspired by the likes of Albert Ayler, Archie Shepp, Sun Ra and late period John Coltrane, and tried to imitate the ecstatic sounds of the squealing, high-pitched saxophonists they adored. MC5 even later opened for a few U.S. midwest shows for Sun Ra, whose influence is obvious in "Starship". Kramer and Smith were also deeply inspired by Sonny Sharrock, one of the few electric guitarists working in free jazz, and they eventually developed a unique interlocking style that was like little heard before: Kramer's solos often used a heavy, irregular vibrato, while Smith's rhythms contained an uncommon explosive energy, including patterns that conveyed great excitement, as evidenced in "Black to Comm" and many other songs.
Question: What was the manager's contribution to the success of the group?
Answer: 

Background: Arashi (Lan , lit. Storm) is a Japanese boy band consisting of five members formed under the Johnny & Associates talent agency. The members are Ohno Satoshi, Sakurai Sho, Aiba Masaki, Ninomiya Kazunari, and Matsumoto Jun. Arashi officially formed on September 15, 1999, in Honolulu, Hawaii, and made their debut CD on November 3, 1999. The group was initially signed to Pony Canyon and released one studio album and six singles--beginning with their 1999 eponymous debut single before moving to the Johnny's subsidiary label J Storm in 2001, which was initially set up for their succeeding releases.
Context: Arashi began 2002 by releasing their first single under J Storm. "A Day in Our Life" was used as the theme song for Sakurai's comedy drama Kisarazu Cat's Eye and debuted atop of the Oricon weekly singles chart selling 226,480 copies. Their subsequent releases of the year, "Nice na Kokoroiki" and "Pikanchi", were used as the theme songs for the anime Kochira Katsushika-ku Kameari Koen-mae Hashutsujo and Arashi's movie Pikanchi Life is Hard Dakedo Happy (pikanchi Life is HarddakedoHappy, Pikanchi Life is Hard But Happy) respectively.  Starting in 2003, the group would only release two singles every year until 2007. Both singles released in 2003, "Tomadoi Nagara" and "Hadashi no Mirai/Kotoba Yori Taisetsu na Mono", debuted at number two on the charts. The song "Kotoba Yori Taisetsu na Mono" marked the first time a member contributed to the penning of a single, as many of the group's songs are produced by other lyricists, composers, or musicians. Sakurai, who is the designated rapper of Arashi, has since written all the incorporated rap lyrics of the group's releases.  2004 was Arashi's fifth anniversary since debut. They began the year by releasing their twelfth single, "Pikanchi Double", in February as the theme song for their second movie Pikanchi Life is Hard Dakara Happy (pikanchi Life is HarddakaraHappy, Pikanchi Life is Hard Thus Happy). Selling 89,106 copies in the first week, it is Arashi's lowest-selling single to date. In celebration of their anniversary, the group released a greatest hits album 5x5 The Best Selection of 2002-2004, which included their second 2004 single "Hitomi no Naka no Galaxy/Hero".  In 2005, on New Year's Day, Arashi released their first concert DVD since How's It Going? in 2003 titled 2004 Arashi! Iza, Now Tour!!. From July 26 to August 24, they embarked on a summer tour titled One to support their album of the same name. One of the highlights of the tour included the live performance their first single of the year, "Sakura Sake", on top of "Johnny's Moving Stage" (ziyanizumubingusutezi, Janizu Mubingu Suteji), a transparent stage that travels over the top of the audience. Invented by Matsumoto, "Johnny's Moving Stage" has since been used in a majority of Arashi's concerts to allow them to move closer to the audience seated at a distance from the main stage. In November, Arashi released a theme song for the manga-based drama Hana Yori Dango, which starred Matsumoto as one of the lead actors. "Wish" went on to sell an estimated 178,000 copies in its first week and over 300,000 copies by the end of its chart run, making it their first single to sell over 300,000 copies in total in nearly three years since "A Day in Our Life" in 2002.
Question: Did they have any other singles at that time?
Answer:
the group released a greatest hits album 5x5 The Best Selection of 2002-2004, which included their second 2004 single "Hitomi no Naka no Galaxy/Hero".