D.P.
Do you think it may be a matter of dad developing more confidence in caring for the baby? Babies seem to be able to sense when someone is a novice--tell dad to act confidently (even if he doesn't FEEL confident!). Leave your husband alone with the baby and they will both deal with it. In time your husband will find his own ways of doing things with his son. No truer words: "Dads do things a little differently." You might have to look away a bit. LOL Good luck! And congrats on your new baby.