husband cause you feel he's just too rough with your baby?

I think you can try just stating it as a matter of fact. Like for example, don't point out the mistake but instead simply let him know what is your preferred way of doing things. For example, instead of stating with "you are too rough with the baby!!", try saying "when you are picking the baby up, you need to place your hand gently..... *insert instructions*". Not sure if this will work for you, but I find that focusing on just stating the facts makes it easier to "suggest" another method of doing things. ;)