I'd like to suggest you to make a small change and try Kanban for couple of weeks instead of Scrum. It may work better for your team.
While Scrum drives productivity by limiting the work time available in a sprint, Kanban drives productivity and velocity by limiting the number of active, concurrent issues. Time estimation is no longer part of the process. (source)
IN A NUTSHELLIn a nutshell, WHAT IS KANBANwhat is Kanban?
Kanban is also a tool used to organize work for the sake of efficiency. Like Scrum, Kanban encourages work to be broken down into manageable chunks and uses a Kanban Board (very similar to the Scrum Board) to visualize that work as it progresses through the work flow. Where Scrum limits the amount of time allowed to accomplish a particular amount of work (by means of sprints), Kanban limits the amount of work allowed in any one condition (only so many tasks can be ongoing, only so many can be on the to-do list.)
HOW AREHow are SCRUM AND KANBAN THE SAMEand Kanban the same?
Both Scrum and Kanban allow for large and complex tasks to be broken down and completed efficiently. Both place a high value on continual improvement, optimization of the work and the process. And both share the very similar focus on a highly visible work flow that keeps all team members in the loop on WIP and what’s to come.
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