Comment by mercutio2

Current team certainly isn’t omniscient. Just that you’re liable to make enemies, not friends/develop career, by coming in and proposing brand new, undesired/unforeseen changes and winning the argument with management.

Brand new not-desired-by-team features/changes often end up owned and maintained by the existing team for a long time, often long after you’re gone. You, as a new person, probably aren’t shouldering much maintenance burden yet, bad to be perceived as adding more rather than reducing load.

Much better to fix a generally acknowledged problem, reducing maintenance burden for the existing team.