Whatever the management benefit supposedly is, seems like it could be achieved with declaring current (not 'sprint'^) goals, and a filter for tickets done/progressed in a given date range?
(^Even the language is depressing: sprint, ticket, points, standup, sit down, keep moving, ...)
Some people might debate on how active a kanban board should be.
That's not Scrum then. You don't add stuff mid-sprint, that's the whole point. Unless the world is literally on fire, you don't touch the sprint content.
What's your scrum master doing when you get stuff added? It's their job to prevent it.
And if work overflows, you need to spend time grooming the tasks to manageable chunks and adjust the team velocity. You can always pick up more tasks if you run out of stuff to do.
The real solution is of course not to have any "sprints" at all. A manageable chunk of work is a 3 to 6 month project.
Non-tech enterprise treat software engineers as children and create bad software. FAANG and adjacent companies treat software engineers more as professionals and create better software.
Waterfall-style projects had 3 to 6 month timeframes of delivery and we all know how that goes. The result is always either out of date due to changing requirements or not what the customer wanted because there is no way to change course after the project specification was locked.
...or you spend so much time doing an exact specification that the Agile team has already delivered 3 incremental versions.
Waterfall were 1 to 2 year projects with heavy up-front administration. 3 to 6 months is well-balanced and that's what the "elite" companies and research groups tend to use. Two weeks is the current fad at non-tech enterprise.
After the team is mature enough, one of them can take the SM duties in addition to other tasks because the actual process runs without extra management.
The team members are too busy with agile meetings to write software. That's a more common problem.
Maybe giving the tech lead a technical secretary is a better idea if you have a lot of administration to be done.
There's really no point being that strict. I think two week meetings/sprints are good for keeping focus and as an opportunity to agree short term priorities. But the point is to get work done, not to precisely obey scrum rules.
If the "you" is the team, go ahead. Add anything you want, as long as you deliver what you promised in the beginning of the sprint.
If the "you" is an external person asking for a "quick job", then the default answer is "talk to the scrum master" whose default answer will be "No.". Then they can start discussing if it is so urgent and important that it can't wait 1-10 business days for the next sprint and/or small enough not to disrupt other work.
The rules are there to protect the team. If the team is willing to take ad-hoc work, nothing in the agile rules says they can't do so. The point is that nobody outside of the team can force them to take on extra work mid-sprint and disrupt their planned work.
I hate working with people like this. So unhelpful.
A scrum master? Man, I thought my team was bloated with process but the fact that role exists elsewhere means I should probably be more grateful.
That being said, I would say that having a Kanban board without any sprint structure (or any attached micromeetings) would skyrocket my productivity. The two-week sprint thing is meaningless to me - in my org tickets overflow from one sprint to the next all the time, tickets get added mid-sprint, it's an utterly meaningless distinction.