Anecdote from my old job: Management issued a directive that there should be "no failed sprints". Teams started either putting 1-3 small tickets on the sprint,

Anecdote from my old job: Management issued a directive that there should be "no failed sprints". Teams started either putting 1-3 small tickets on the sprint, or filling the sprint with tickets which have already been technically completed (during the previous sprint, naturally). Any difficult or complex tickets were simply not placed on a sprint until they were figured out.