There are a lot of contradicting views regarding stretching out there, especially stretches associated with running. In my opinion, what will assist you most seriously, as always, is enjoying and connecting with what you’re trying to achieve. There is no point in making yourself run if you hate running and there is no point in racing through your stretches if you’re not paying attention to what you’re trying to feel and achieve during them.
In an ideal world, our bodies would be balanced and able to move easily and freely through movements because everything is correctly aligned, flexible and stable. However, the majority of us have dysfunction around our bodies: the muscles around our pelvis are weak due to the amount of time we spend sitting, our feet are stiff and lack bounce from squashing them into shoes and pounding around on hard concrete pavements, our ribs are tight from not breathing fully…and so on. So this means we need to spend a little time un-doing our poor postural patterns, and re-learning how to move with ease.