Here is a solution that I implemented in order to draw arrows in Tableau. It is about some good old geometry and trigonometry at work.
My input data is prepared for Tableau within Alteryx. In case you do not use Alteryx, the solution can be easily implemented in MS Excel if you have just a few rows of input data. For more rows of input data (and still no Alteryx), I suggest automating the solution within a small MS Access database using some VBA coding. Please feel free to use it and tune it up if need it. Attached you will find the solution files.