Disagree, it was Morrissey insisting on recording covers for B-sides for singles on the last studio LP along with his refusal to do more videos for America which caused Marr to split. They tried to carry on without Johnny Marr but it didn't pan out using Ivor Watts from Easterhouse; From Wiki; Former Easterhouse guitarist Ivor Perry was brought in to replace Marr,[17] and the band recorded some new material with him which was never completed, including an early version of "Bengali in Platforms" that was originally intended as the B-side of "Stop Me If You Think You've Heard This One Before".[18] Perry was uncomfortable with the situation, stating "it was like they wanted another Johnny Marr", and the sessions ended with (according to Perry) "Morrissey running out of the studio".[19] By the time the group's fourth album Strangeways, Here We Come was released in September, the band had split up. The breakdown in the relationship has been primarily attributed to Morrissey becoming annoyed by Marr's work with other artists and Marr growing frustrated by Morrissey's musical inflexibility. Marr particularly hated Morrissey's obsession with covering 1960s pop artists such as Twinkle and Cilla Black. Marr recalled in 1992, "That was the last straw, really. I didn't form a group to perform Cilla Black songs."[20] In a 1989 interview, Morrissey cited the lack of a managerial figure and business problems as reasons for the band's split.
Sobriety sabotaged many good bands. Most notably Stone Temple Pilots. Come on Scott, you are awful without heroin.