Thank you for that link, you sum up the idea that sometimes counting total tasks works fine quite well:
> Will this work if my tasks aren’t all the same size?
> The short answer is yes, your work items don’t have to be the same size for this approach to work. The chances are that If you take 100 tasks in the past and compare those to a sample of 100 tasks in your current backlog, they will be the same size on average. Also, they are likely to be the same size on average regardless of how you measure (e.g. in story points or by some other estimate) or simply by task count.
> Will this work if my tasks aren’t all the same size?
> The short answer is yes, your work items don’t have to be the same size for this approach to work. The chances are that If you take 100 tasks in the past and compare those to a sample of 100 tasks in your current backlog, they will be the same size on average. Also, they are likely to be the same size on average regardless of how you measure (e.g. in story points or by some other estimate) or simply by task count.