Retrospectives
At Delft Solutions most teams will hold a retrospective each week to see where process can be improved.
Process
During the week, issues with the current process (for example a process not being followed by someone, or a process not taking care of a specific incident) will be listed in the Retro channel. Once a week, generally on Friday, these points are discussed in a timeboxed meeting. There is always an outcome to each item, where everyone in the team agrees that is how we wil move forward. That means that we cannot just do nothing, but we can decide to not change anything (and have it happen again next time). In most cases the resolution will be to amend the process at hand.
This also means that you cannot diverge from a current process during the week, but only after discussing it at the Retrospective.