Corina, I actually found it surprising when I was dealing with my pulled hamstring that the routine my athletic trainer was on involved quite a bit of stretching. I always learned to be careful not to overstretch an injured muscle. It worked perfectly, though. Just more proof that different people and different situations call for different approaches.
In retrospect, it's kind of funny that, when I was told to focus on static stretching, dynamic exercises worked better. When I was told to be very cautious with static stretching, that's what worked best.