This is why (at least in software), nobody should be able to do anything on their own. The "I will do this" is fine, but it can't go to production without a review and of course automated testing and the like.
Of course, then you create a bottleneck; if you write a MR but nobody reviews it in a timely fashion, nothing happens. But this is where you have to make agreements, and probably on a management level (= team lead, doesn't need to be heavier) about e.g. acknowledging and reviewing within a certain time period.
Of course, then you create a bottleneck; if you write a MR but nobody reviews it in a timely fashion, nothing happens. But this is where you have to make agreements, and probably on a management level (= team lead, doesn't need to be heavier) about e.g. acknowledging and reviewing within a certain time period.