Default [Q] Resizing partitions

I know that this questions has been asked before, but in those the systems use SD cards, so it isn't exactly the same question...
I don't know how partitions work in Nexus 10, but, as it doesn't use external cards, I suppose it just uses a single memory of 16gb.
So, as far as I know, it has 3 partitions: /data, /system and /cache.
The system partition (644mb) is almost full (10 mb left) and I haven't installed anything at all. The problem is that I have some drivers that MUST be installed in that partition, so I was just wondering if there's a way of resizing the partition, for it's impossible to simply freeing space (I require more than 300 additional megabytes).

Thanks in advance.