It's easy to place too much emphasis on soft-tissue and mobility work as a warm up prior to training - how much time are you wasting on a weekly basis?
First, I’m going to tell you how a warm up should go. Then, I’m going to discuss all the factors you aren't considering that might have you get injured.
A good warm up will enable your body to get to its working heart rate quicker. Starting from cold means your body has to work anaerobically for longer.