Tee Work

It looks like you're doing it pretty well, I wonder if the problem isn't so much that you aren't using th ehips but that your hands are going before the hips, it looks o.k. to me though so I would keep at the tee work and try to get some live pitching or at least soft toss to try and translate it to hitting a moving target.

You have no seperation between the lower and upper body. Your swing is powerful, but because you commit early in the swing, offspeed stuff will give you difficulty. Its step THen swing not step with swing. You front heel is helping to initiate bat launch. which is bad if your step is mis-timed. If you step and can pause for a split sec before bat launch, then you can batter adjust to different speeds and location of pitches.