Boxing help; my footwork is not catching up with my hands?

I do my roadwork everyday, workout almost everyday. My form during shadow boxing is ok but when it comes to hitting sandbags or pad work i use my hands more than my legs. The chairman told me during pad work that I need to match my punches with my foot, however when it comes to combinations I just can not use my body. I've been boxing for half a year now, and I'm beginning to get dissatisfied with my skills. No matte how hard I concentrate on my footwork I always forget it when it comes to punchng objects. I jumprope for 3 rounds using different tricks. Any tips?