Why not? I talked to customers as a dev - it's just that customers couldn't come and pester me to make me do extra work or change priorities. Is that too hard

Why not? I talked to customers as a dev - it's just that customers couldn't come and pester me to make me do extra work or change priorities. Is that too hard or inconvenient to understand? Scrum fits new development more than maintenance and I've never found any other "phase" where it doesn't fit reasonably. I've been in situations where I've thought we needed longer sprints. Ultimately if the overhead is too much we used the retrospectives to remove it. The problem is if you're the only one in the team that wants some change - then you cannot force it.