I think you’re missing the point as to why I might lose confidence. I’m fine with people being better than me, especially when they explain why they did certain things. But we work as a team, that means that before we do work, we agree on one thing. If suddenly an engineer decides a week later he wants to do something else, then that’s not cool. Even if he has a valid reason for it. Instead you talk to the team, and agree to change.

Again, there’s a reason why we work in teams, and not as individuals. I trust my teammates too, but rewriting code without any discussion breaks that trust for me.