I know a lot of you people really don't like it. I also don't like it.
We haven't really heard a lot about the new skill 'smithing', but it seems like you can make your own armor if you have the right materials.
So greaves, cuirass and pauldrons are now put together which limits the way you can customize your character. But, maybe you can actually make your own pauldrons and greaves when creating armor with smithing.
The reason why i think this is because of a screen which was released a few weeks ago and the new info we saw last week on the E3. Remember the screen in PSM with the Nord with the hammer and the skull on his left shoulder? If you look closely at his armor you can see that it's very similair to - if not the same as - the 'dovahkiin armor'. First I though this did confirm seperate pauldrons, but after the E3 trailers i was confused, because there were pauldron on the armor, but no armor slot for pauldrons.
My theory is that the nord wears the 'dovahkiin armor' but it's a customized version. He used smithing to create his own armor and maybe had a recipe and the skill or something like that, to add a skull pauldron on the armor to give his armor a different look and maybe also increasing the armor value.
I'm pretty sure bethesda knows that we want more armor slots like we had in Morrowind. Perhaps it is too much work to do it the way they did it in Morrowind so they tought of a new way to please the fans but go in a new direction.